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mining way

mining way

mining way

mining way

1

Passes fries in You quan zi oil field to indicate these pointed mining way economy using the practice effective feasible .

通过油泉子油田应用实践表明这些针对性的开采方式经济有效可行。

3

The down- hill across caving mining way under level divided layer artifical roof in great inclined thick seam

急倾斜厚煤层水平分层人工假顶下行垮落采煤法

4

An Artificial Neural Network Model for Mining Way Distinguishing

用于采煤方式选择的人工神经元网络模型

5

The inclined band mining way in great inclined seam

急倾斜煤层的倾斜条带开采方法

6

Study on the mining way under industry square

工业广场下压煤采煤方法研究

7

Mining Way Distinguishing Based on Rough Set

基于粗糙集的采煤方式选择模型

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