In the design of shell-and-tube heat exchanger, we take transverse convex tube instead of smooth tube and hollow ring instead of baffle.是什么意思_In the design of shell-and-tube heat exchanger, we take transverse convex tube instead of smooth tube and hollow ring instead of baffle.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句