短语词组短語screw -type gas compressor 螺杆式瓦斯壓縮機Screw -type air compressor 螺杆式空壓機open -type screw refrigerating compressor 開啓式螺杆制冷壓縮機positive -displacement screw type compressor 正排量螺鏇式壓氣機 返回 screw-type compressor