Through the comparison of the performances of various domestic air shutter for boilers, the principles and specific conditions for selecting structure of air shutter of boilers were presented.
并通过对国内制造的锅炉调风器性能指标的对比，提出锅炉调风器结构形式的选择原则与具体条件。
In this paper, the principles of pressure boiler refit to normal pressure hot - water boilers are discussed in detail.
详细地论述承压锅炉改装成常压式热水锅炉的机理。
The structural characteristics and operation principles of the electric water boilers applied on the present railway air conditioned passenger cars are introduced in detail.
对目前铁路空调客车上使用的电开水炉的结构特点及工作原理作了较详细的介绍。
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