... 176 临界深度critical depth 112 比能压specific energy pressure 71压缩粉碎区pressed;crushed zone ...
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当刹车比压和能载增加时，经过不同温度处理的四种试样干态及湿态平均动摩擦系数均相应下降。
The average dynamic FC of four kinds of samples treated under different temperatures was reduced in dry and damp condition as brake pressure and energy were raised.
混合气体也能比普通气体更长时间的保持胎压。
The mixture also retains the pressure longer than normal air would.
常规压裂时，压裂液对裂缝壁面的污染越严重，裂缝壁面污染带的渗透率就越低，水力压裂能获得的增产倍比就越小；
For hydraulic fracturing, the damage to fracture surface is ever severe, the permeability of damage zone is ever low, and the production response of hydraulic fracturing is ever junior;
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