干沟金矿床是韧性剪切带含金石英脉型金矿床。

Bei Gangou gold deposit is a quartz vein type gold deposit in ductile shear zone.

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研究了四川干沟金红石矿的工艺特征，阐述了矿石的难选原因。

The mineralogical characteristics of Gangou rutile ore in Sichuan province are studied and reasons of difficult to processing for the ore are discussed.

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本文以庄河市干沟大桥为例，介绍了梁拱组合体系桥梁的静力特性及结构优化设计。

In this paper, taking the engineering of Gangou bridge as an example, introduces static characteristics and structural optimization analysis of girder and arch combination bridge.

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