短語詞組短語paddle wheel aerator 水車式增氧機(jī)paddle e aerator 葉輪式曝氣器surface paddle aerator 河面槳形曝氣機(jī)floating paddle aerator 浮式網(wǎng)箱結(jié)構(gòu)Paddle -wheel aerator 翼輪式曝氣器submerged paddle aerator 潛槳式曝氣設(shè)備Aerator paddle -wheel 翼輪式曝氣器 返回 paddle aerator