Thermal behavior of vacuum concentric tube annulus is a process involving combined heat transfer mode, in which the thermal conduction of low pressure gas plays an important role.
真空同心管套涉及传导、辐射等传热方式，其中低压气体的热传导非常复杂，是分析问题的关键。
The present invention relates to an encompass-suction type combined cookware, which is formed by combining an oil fume suction device and a gas range.
本发明涉及一种围吸式组合厨具，它由吸油烟装置与燃气灶组合构成。
Further, the principles and ways which solve the crucial question are given, that is, two supports consisted of three-ball bearing are combined with the sealing by differential gas flow cycle.
进而阐述了解决这些关键问题的原理和方法，即两个三滚珠轴承支承和差动气流循环密封相结合的方法。
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