In the compression process, it is necessary that the released interlayer water of montmorillonite resulting from dehydration should be added to the calculation of land subsidence amount.
蒙脱石在地层压实过程中所发生的脱水作用，造成层间水释出，需纳入到地面沉降量的计算范围之内。
The amount of catalysts and other factors in condensation were investigated. The conditions on dehydration and hydrogenation were also investigated.
研究了催化剂用量等因素对缩合的影响，考察了脱水、催化加氢的条件。
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