"四川煤矿煤层基本情况及采煤方法调查摸底表"
本文档由 wuchen 分享于2010-08-18 01:56
"序号","矿井名称","生产能力(kt/a)","采煤方法","采煤工作面(个)","掘进工作面(个)","开采煤层厚度(米)及编号","煤层倾角(度)","备注","说明...
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君，已阅读到文档的结尾了呢~~