词汇	pole filter
释义	pole filter 极性纤维
随便看	drilling tool damage drilling tool failure drilling tool gradation drilling tool jamming accident drilling tools drilling tool stillness drilling tool structure drilling tool substitute drilling tools with chains for deep drilling drilling top-driving drilling tower drilling traces Drilling Track drilling troubles drilling turbo drilling ultrasonic sound drilling under films drilling under presure drilling unit drilling units drilling up drilling up cement retainer drilling vesel drilling vessel drilling vessel core sampling