短語(yǔ)詞組短語(yǔ)Paddle -wheel aerator 翼輪式曝氣器Aerator paddle -wheel 翼輪式曝氣器paddle -wheel configuration 槳輪結(jié)搆Aeration paddle -wheel 轉(zhuǎn)輪式曝氣side paddle -wheel 舷明輪radial paddle -wheel 定葉明輪 返回 paddle-wheel