短語詞組短語Air -curtain method 氣幕法air bells curtain 氣簾air r curtain 無形門簾;風(fēng)簾cool air -curtain 冷風(fēng)幕air -curtain cleanroom 氣幕潔淨(jìng)室upward air supply curtain 上送式風(fēng)幕 返回 air curtain