短語(yǔ)詞組短語(yǔ)valve adjuster plug 閥調(diào)節(jié)器螺塞relief valve adjustment plug 安全閥調(diào)整塞valve stem plug 氣門桿螺塞valve adjustment plug 閥調(diào)整柱銷injection valve shear plug 射入閥切力塞valve stem plug wrench 氣門桿螺塞扳手valve chamber plug 氣門室塞fixed -valve preventive plug 固定凡爾防堵塞器VALVE WITH PLUG -OFF 無(wú)塞閥門 返回 valve plug