... direct heat exchanger 直接接触式热交换器 direct refrigeration system 直接制冷系统 direct-fired generator 直燃式发生器 ...
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Adsorbent bed is the core component of adsorption refrigeration system, its heat and mass transfer performance has a direct influence on the refrigerating capacity of the system.
吸附床是吸附式制冷系统的核心部件，其传热传质性能的好坏直接影响到系统的制冷量。
Contrast experiments between gravity feeding and direct expansion refrigeration system were carried on, performance characteristics difference of the two refrigeration systems were found out.
并与直接膨胀供液制冷系统做同工况下的对比实验，分析两种系统的工作特性差异。
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