complex bed 复合床
complex bed technology 复合床层技术
Complex medium bed 组合基质床
hydraulic complex test-bed 液压综合试验台
The hydrogeologic condition of Danhou mine is complex, and the sublevel coal is threatened by O. L. water. It is very difficult that thin confining bed coal is mined under pressure.
单侯矿井水文地质条件比较复杂，下部煤层受奥灰水威胁，薄隔水层带压开采问题非常突出。
The dam foundation engineering geological problem is the bed rock deep weathering in Malutang water complex.
马鹿塘水利枢纽坝基主要工程地质问题就是基岩深风化问题。
The structure forms of catalyst support for tubular fixed bed reactor underwent the evolution from complex to simple and from difficult to easy.
列管式固定床反应器催化剂支托的结构形式，经历了由繁到简、由难到易的演变。
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