The first Stirling-cycle cryocooler was developed at Philips in the 1950s and commercialized in such places as liquid air production plants.是什么意思_The first Stirling-cycle cryocooler was developed at Philips in the 1950s and commercialized in such places as liquid air production plants.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句