《同达铁矿4矿区4号矿体开采可行性研究报告.doc》由会员分享,可在线阅读,更多相关《同达铁矿4矿区4号矿体开采可行性研究报告.doc(68页珍藏版)》请在三一文库上搜索。
1、Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineS
2、pacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.Lin
3、eSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
4、aaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.Par
5、agraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.P
6、aragraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
7、aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 1 - 目目 录录 1 1 总论总论1 1 1.1 项目简介 1 1.2 可行性研究的依据 2 1.3 可行性研究的原则 2 1.4 可行性研究的范围 2 1.5 主要技术经济指标 3 2 2 市场需求现状及预测市场需求现状及预测4 4 2.1 铁矿石国内需求及供应变化情况.4 2.2 产品价格分析 4 3 3 矿区地质概况矿区地质概况5 5 3.1 矿山地质概况.5 3.2 开采技术条件.8 3.3 矿石质量10 3.4 资源储量估算10 3.5 对设计依据的地质资料的评述11 4 4 采矿采矿1313 4.1 矿区
8、开采范围 .13 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFor
9、mat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphF
10、ormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
11、aaaaaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Sele
12、ction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Se
13、lection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
14、aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 2 - 4.2 矿山规模及工作制度 .14 4.3 矿床开拓 .15 4.4 开采顺序 .17 4.5 基建工程量17 4.6 采矿方法 .18 4.7 矿井通风与防尘 .20 5 5 矿山机械矿山机械2323 5.1 矿井运输与提升23 5.2 矿井供水、排水系统 .27 5.3 矿山压气 .29 6 6 机修机修3030 7 7 矿区供电、通讯及自动控制矿区供电、通讯及自动控制3131 7.1 矿区供电 .31 7.2 矿区通讯 .32 7.3 矿用提升机的控制 .32 8 8 总图运输总图运输3
15、434 8.1 企业布局 .34 8.2 总体布置及总图设计 .34 8.3 生产运输 .34 8.4 绿化 .35 9 9 能源利用与节能措施能源利用与节能措施3636 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.Paragra
16、phFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoin
17、ts(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaa
18、aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLine
19、sToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.Line
20、SpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaa
21、aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 3 - 9.19.1 能源种类能源种类 3636 1010 环境保护环境保护3838 10.1 设计依据及设计原则.38 10.2 主要污染源及污染物.38 10.3 环境保护措施.39 10.4 环境影响评价.40 10.5 环境监测与管理.41 1111 工业卫生工业卫生4242 1212 矿山安全矿山安全4444 12.1 安全设计依据的规程、
22、规范 44 12.2 安全制度 44 12.3 安全机构 46 12.4 影响安全的主要因素及防范措施 46 12.5 工业卫生 53 1313 组织机构和劳动定员组织机构和劳动定员5555 13.1 组织机构 55 13.2 工作制度 55 13.3 劳动定员 55 1414 投资估算投资估算5757 14.1 矿山设备 57 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSp
23、acingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.
24、ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.Paragraph
25、Format.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.Para
26、graphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToP
27、oints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesT
28、oPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 4 - 14.2 项目总投资 57 14.3 编制依据 58 1515 技术经济技术经济5959 15.1 建设项目资金筹措 59 15.2 产品成本估算 59 15.3 经济评价 60 16
29、16 需要说明的问题需要说明的问题6161 附图目录:附图目录: 1、本溪满族自治县同达铁矿 4 矿区 4 号矿体矿区地形地质图 2、本溪满族自治县同达铁矿 4 矿区 4 号矿体总平面图 3、本溪满族自治县同达铁矿 4 矿区 4 号矿体开拓系统纵投影图 4、本溪满族自治县同达铁矿 4 矿区 4 号矿体阶段矿房采矿方法图 5、本溪满族自治县同达铁矿 4 矿区 4 号矿体浅孔留矿采矿方法 附件:附件: 采矿许可证(副本复印件) (证号:2100000521110) 同达铁矿 4 矿区 4 号矿体开采可行性研究 Selection.ParagraphFormat.LineSpacingLinesTo
30、Points(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFor
31、mat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphForma
32、t.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 1 - 1 1 总论总论 1.11.1 项目简介
33、项目简介 1.1.11.1.1 矿区自然概况矿区自然概况 本溪县同达铁矿 4 矿区 4 号矿体位于辽宁省本溪县高官乡北东 约 10km 处,距本溪市东南 35km,距偏岭火车站 26km,有县级黑色 公路相通,行政区划隶属于高官乡碾子沟村所辖,交通条件方便 (详见交通位置图) 。 本溪县同达铁矿 4 矿区 4 号矿体矿区中心地理坐标为,东经: 1235958;北纬:413104。 该区属大陆性半干旱季风气候,年降水量在 700mm 左右,集中 在 79 月份。易形成洪水,封冻期自 11 月下旬至翌年 3 月份,历 时 4 个多月。年平均气温 8。无霜期 160 天左右,冬季冻土层约 1.30m
34、 左右。自然地理属中低山丘陵区,多以丘陵为主,地形低缓, 海拔高度 300500m,相对高差 150250m。地形切割强烈,形成狭 长状山间沟谷密集雨裂,基岩多半掩盖,第四系多分布于山前坡地。 该区经济上属贫困地区,以农业生产为主。工业不发达,以小 型的采矿业为主,多为铁、金矿。农业以旱田种植业为主,农作物 为玉米、高粱、谷类和小杂粮等。当地居民总体的生活水平一般, 农村剩余劳动力充足。有 1 万伏高压线通至矿区附近,矿山生产动 力用电充足。沟谷第四系潜水可满足小型矿山的工业用水和生活用 同达铁矿 4 矿区 4 号矿体开采可行性研究 Selection.ParagraphFormat.Line
35、SpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selectio
36、n.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.
37、ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 2 - 水。 1.2
38、1.2 可行性研究的依据可行性研究的依据 本可行性研究报告的编制主要依据了该矿山的基础地质资料和 采矿工艺、土建、电气、给排水、总图运输等各个专业的技术规范、 标准。同时还依据了如下一些基础资料: (1)中华人民共和国采矿许可证(副本复印件) (证号: 2100000521110) ; (2) 辽宁省本溪县同达铁矿 4 矿区 4 号矿体铁矿资源量核实 报告 ,辽宁省第十地质大队,2007.9。 1.31.3 可行性研究的原则可行性研究的原则 (1)采用的生产技术既要先进合理又要成熟可靠,使项目能顺 利施工、安装、投产,取得最佳的经济效益; (2)按年产 10 万 t 铁矿石原矿的生产能力,确定
39、合理的技术 方案和开采范围; (3)选择技术方案时,在满足设计规范的前提下,充分考虑矿 方的要求以及地形、地质、气象等自然条件,尽量使工艺流程完整、 简捷、顺畅,以减少用地和土石方工程量,合理地利用资金; (4)充分考虑污染源的治理,严格执行环保和职业安全卫生标 准的规范; (5)充分考虑矿山安全影响因素。 1.41.4 可行性研究的范围可行性研究的范围 (1)对项目建设的内部条件、外部条件进行研究; 同达铁矿 4 矿区 4 号矿体开采可行性研究 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFo
40、rmat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointsel
41、ection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)S
42、election.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 3 - (2)对主要设备的选型、工艺、土建、供配电、给排水、总图 运输的技术方案进行研究; (3)对企业组织
43、机构的设置和劳动定员安排进行研究; (4)对项目总投资进行估算,并对项目完成后的经济效益、社 会效益进行定性和定量的分析。 1.51.5 主要技术经济指标主要技术经济指标 详见表 1.1。 表 1.1 主要技术经济指标表 序号指标名称单位数量 地质指标 1 地质储量万 t 35.2 2 本次设计利用储量万 t 35 3 矿石类型磁铁矿 4 矿石地质品位 35.88 采矿指标 1 矿山设计规模万 t/a 10 2 矿山开采年限 a3.5 3 矿山工作制度300d/a,3 班/d,8h/班 4 矿山建设时间 a0.5 5 基建工程量 m35053 6 开拓方案竖井开拓 7 采矿方法阶段矿房法,浅孔
44、留矿法 8 废石混入率 15 9 矿石回采率 85 10 采出矿石品位 30.54 经济指标 同达铁矿 4 矿区 4 号矿体开采可行性研究 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpa
45、cingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.Pa
46、ragraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
47、aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 4 - 1 投资万元 374.7 2 矿石成本元/吨 41.63 3 矿石售价元/吨 120 4 年利润万元 555.7 5 年税后利润万元 372.3 同达铁矿 4 矿区 4 号矿体开采可行性研究 Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselectio
48、n.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragrap Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLi
49、nesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF - 5 - 2 2 市场需求现状及预测市场需求现状及预测 2.12.1 铁矿石国内需求及供应变化情况铁矿石国内需求及供应变化情况 改革开放以来,我
链接地址:https://www.31doc.com/p-3863286.html