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。
The gas hydrate is a new type of hydrate characterized by relatively shallow buried depth, thin permafrost zones, complex gas components, and coal-bed methane origin.
该天然气水合物具有埋深浅、冻土层薄、气体组分复杂、以煤层气为主等主要特征，表明是一种新类型的水合物。
The complex structural base is treated by ceramsite concrete instead of traditional cinder bed.
混凝土代替传统焦渣垫层，处理复杂的结构基层。
The soil bed formation is a complex process which involves sedimentation and dead-weight consolidation.
悬浮泥沙到沉积土的形成过程非常复杂，涉及到泥沙的沉降和土的自重固结。
The soil bed formation is a complex process which involves sedimentation and dead-weight consolidation.
悬浮泥沙到沉积土的形成过程非常复杂，涉及到泥沙的沉降和土的自重固结。
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