friable gypsum
... friable deposit 疏松沉积物，疏松积灰 friable gypsum 脆性石膏 friable material 易碎物料 ...
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本文着重研究了石膏的用量、水的用量、缓凝剂对石膏相似材料强度的影响，并找到了符合深部脆性岩体性能的石膏的优良配方。
And the effect on similar material's intensity is studied, such as the dosage of gypsum and water, retarder. A good formulation of gypsum for deep rock is found.
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