短語詞組短語sieve -plate pulse column 脈沖篩板塔vibrating sieve -plate column 振動篩板塔pulsed sieve -plate extraction column 脈沖篩板抽提塔vertical sieve -plate column 垂直篩板塔pulsed -sieve-plate column 脈沖填料塔annular pulsed -sieve-plate extraction column 環(huán)形脈沖萃取柱 返回 sieve-plate column