常見例句雙語例句The invention discloses a two-stage airlock screw feeder, which is provided with a rotating rotary-vane feeder at the exit compared with the prior screw feeder.本發(fā)明公開了一種雙級閉風(fēng)螺鏇送料機，它是在現(xiàn)有螺鏇送料機出口処安裝 有鏇轉(zhuǎn)葉輪式進料器。ip.com 返回 rotary-vane feeder