progression sliding gearprogressive sliding gear分级: grade; classify; classificat ...滑动: slither; slippage; slipping; ...齿轮: cogwheel; gear wheel wheel-l ...滑动齿轮: clash gear; removing gear; slide gear; sliding gear; slip gear无滑动齿轮: sliding eliminated gear; slidingeliminatedgear下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:分级滑动齿轮，即可在微信中查询翻译
