solid concentration in annular space
携带岩屑cutting carrying 岩屑运移比cutting transport ratio 环空岩屑浓度solid concentration in annular space 钻井泵效率rate of utilized power of the drilling pump ..
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cutting concentration in annulus
... 环空压力， 套压 annular pressure 环空岩屑浓度 cutting concentration in annulus 环空注水 annular water injection ...
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