This section will also have energy-saving effect, but it is not the main purpose.
这一部分也会有节能效果，但它不是主要的目的。
The main factor that should be considered to have better use effect has been described.
并简要介绍了设计过程中应考虑的一些主要因素，使之能达到较好的使用效果。
The main factor that should be considered to have better use effect has been described.
并简要介绍了设计过程中应考虑的一些主要因素，使之能达到较好的使用效果。
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