This kind of multi-functional external guide shell is of certain reference value to the design of heat interchanger.
这种多功能外导流筒在一定场合可以取代壳体上的膨胀节，对工程应用具有较好的参考价值。
The regional hypothermia methods are mostly epidural cryogenic liquid filling and the heat interchanger direct cooling.
局部低温，方法多集中在硬膜外或硬膜下的低温液体灌洗以及热交换器直接制冷伤段脊髓。
The utility model provides an automatic air interchanger for trains, which can suck air and can supply air, can prevent rain and dust, and has no rotors.
本实用新型提供了一种既可抽气又可送风，既防雨防尘、又无转动件的列车自动换气器。
The calculations of barrel panels and panel space of the double barrel panels heat interchanger are discussed. Some problems which should be paid attention to are put forward in this paper.
讨论了实际设计中双管板换热器管板的计算以及双管板管板间距的计算，并提出在设计中注意的问题。
The calculations of barrel panels and panel space of the double barrel panels heat interchanger are discussed. Some problems which should be paid attention to are put forward in this paper.
讨论了实际设计中双管板换热器管板的计算以及双管板管板间距的计算，并提出在设计中注意的问题。
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