feed nut进给: feed螺母: nut source; origin; parent进给螺杆: feed screw进给螺旋: feeding worm鞍架进给螺杆: saddle feed screw; saddle traverse screw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:进给螺母,即可在微信中查询翻译