expansion valve　是什么意思_expansion valve　用英语怎么说_expansion valve　的翻译_expansion valve　翻译成_expansion valve　的中文意思_expansion valve　怎么读,expansion valve　的读音,expansion valve　的用法,expansion valve　的例句

We need a few pieces of expansion valve for refrigeration plant.

我们需要几个用于制冷装置的膨胀阀.

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Part I , the stability of an evaporator superheat control an electrical expansion valve is investigated.

研究了在PI控制下蒸发器过热度控制的稳定性.

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