gear grindergear grinding machinegear tooth grinding machinegear-grinding machine齿轮: cogwheel; gear wheel wheel-l ...磨床: grinding machine; grinder内齿轮磨床: internal gear grinder伞齿轮磨床: bevel gear grinder斜齿轮磨床: bevel gear grinder下载手机词典可随时随地查词查翻译