短語(yǔ)詞組短語(yǔ)belt sludge thickener 帶式污泥濃縮機(jī)sludge thickener WESTBANK 污泥濃縮槽gravity sludge thickener 重力污泥濃縮器picket -fence type sludge thickener 柵欄式污泥濃縮器thickener sludge zone 濃密機(jī)泥漿區(qū) 返回 sludge thickener