The optimum phase difference between pressure and gas flow at pulse tube cold end can be achieved by controlling phase of the input pressure at each regenerator hot end.是什么意思_The optimum phase difference between pressure and gas flow at pulse tube cold end can be achieved by controlling phase of the input pressure at each regenerator hot end.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句