短語詞組短語mechanical transport refrigeration unit 機械式運輸制冷機組Mechanical transport refrigeration units 運輸用制冷機組mechanical compression refrigeration 機械壓縮制冷principle of mechanical refrigeration 機械制冷原理mechanical refrigeration function 機械制冷功能mechanical refrigeration compressor 機械式制冷壓縮機ammonia mechanical refrigeration system 氨機械式制冷系統(tǒng)mechanical phonograph recorder refrigeration 機械制冷 返回 mechanical refrigeration