sliding scale
【机械工程】滑动齿轮机构和离合器控制齿轮、基座齿轮
sliding gear mechanism and clutch-controlled gearing, pedestal gearing
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相关词条
sliding-scale basis
sliding scale price
lateral sliding flap
ground sliding, ball hooting
vertically sliding wing (vertically sliding sash)
self-aligning sliding-contact bearing
sliding-parity