nut checknut locking螺母: nut source; origin; parent锁紧: locking; drop lock螺母锁紧垫圈: nut lock washer; nut-lock washer螺母锁紧螺栓: nut lock bolt; nut lockk bolt螺母锁紧装置: nut locking device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:螺母锁紧,即可在微信中查询翻译