Through experiment shale mechanical property is studied after water absorption.
通过实验研究了泥页岩吸水后力学性质的变化。
Many properties of material were tested, such as mechanical property, surface water contact Angle, water absorption rate, infrared spectrum and ESCA analysis.
测试了材料的力学性能、表面接触角、吸水率，同时对材料进行了表面电子能谱(esca)分析。
A check valve (3) can prevent the natural chemical absorption water head of the water head when the manual pump or the mechanical pump stops to work.
止回阀(3)起当手压或机械泵停止工作时能阻止水位差的自然吸药。
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