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他是一个23年的设计工程师管壳式换热冷却热交换器的换热和空气。
He was a design engineer for shell and tube heat exchangers and air-cooled heat exchangers for 23 years.
youdao
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他是一个23年的设计工程师管壳式换热冷却热交换器的换热和空气。
He was a design engineer for shell and tube heat exchangers and air-cooled heat exchangers for 23 years.
youdao