短語詞組短語ball -screw travel 滾珠絲杠導(dǎo)程ball leading screw 滾珠絲桿Ball bearing screw 美線備件;滾珠絲桿ball guide screw nat 滾珠絲杠螺母副Ball BearingandLead Screw Lubricants 滾珠絲桿潤滑劑ball guide screw drive 滾珠絲杠傳動(dòng)ball jointed screw 萬向球鉸螺桿;萬向球接鉸螺桿ball guide screw 滾珠絲杠 返回 ball screw