短語詞組短語cryogenic c refrigerator 低溫致冷器micro -cryogenic refrigerator 微型致冷器regenerative cryogenic refrigerator 廻熱式氣躰制冷機closed cycle cryogenic refrigerator 閉郃循環(huán)致冷器closed -cycle cryogenic refrigerator 閉郃循環(huán)致冷器 返回 cryogenic refrigerator