微细裂隙的良好胶结，使其端部应力集中被降低或消除，岩体屈服极限增大，强度提高。
It is the fine cementation of microcracks so as to reduce or eliminate the stress concentration on their ends intensively. Thus, the limit yield of rock mass and its strength are both enhanced.
结果表明，位于河道中部弱胶结的中砂岩具有良好的储集性能。
The result shows that loam sandstone of weak cementation in the middle of river has good reservoir properties.
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