词汇	青质
释义	青质 qīng zhì青色底子。青質
随便看	pitch constant pitch content pitch contour pitch contours pitch control pitch-control pitch control agent pitch control box pitch-control box pitch control change mechanism pitch control for controllable pitch propeller pitch control handle Pitch-controlled pitch-controlled system pitch-controlled wind turbine pitch controller pitch control link pitch control mechanism Pitch Control Motor pitch control nozzle pitch-control nozzle pitch control oil pump pitch control rod pitch control sensor pitch control worm gear shaft