词汇	speed up drill chuck
释义	speed up drill chuck 机增速钻夹头
随便看	proportionating proportionative proportionator proportionators proportion between supply and demand Proportion Between Teachers and Students proportion between zinc and alkali proportion by addition proportion by addition and subtraction proportion chart proportion circuit with multiple outputs proportion clumsily proportion coefficients proportion combustion proportion component proportion conformance Proportion Conformance Evaluation proportion control proportion controller proportion controls proportion counter proportion cutting method proportion cylinder proportion defective proportion design