为保证壁挂锅炉的质量，检测其安全装置和热工性能是否达到要求，需要根据不同地区的气源进行配气。
In various regions, different test gases are usually necessary to insure the quality, safety device and thermal characteristics of wall hung gas boiler.
采用壁挂式锅炉实行分户采暖的一个主要目的是在满足人性化生活需求的前提下实现节能。
One of the major objects of carrying out individual household heating by using wall-mounted boilers is to save energy.
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