The trade wind is a kind of natural cold source in spring, autumn and winter.
新风在春、秋、冬季是一种天然的冷源。
The axial heat transfer performance of a natural circulation, which could be used in the cold neutron source (CNS), was experimentally investigated.
对一种用于冷中子源系统的自然循环进行了轴向传热特性研究，建立了以氟里昂为工质的同轴型热虹吸管传热实验系统。
The cold source components of the electric fan using natural cold source can be served as the cold source cover or the cold source screen of the electric fan product with the corresponding model.
这种电风扇的冷源部件也可做为相应型号的电风扇产品的冷源罩或冷源屏风。
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