The features of frequency inversion and speed regulation technology were introduced. Its application in water supply project and house construction and energy saving effect were presented.
介绍了变频调速技术的特点。分析、比较并列举了变频调速技术在工业和民用领域中的几个应用实例。同时，也描述了他们的性能及节能效果。
In urban residential construction, actively promote the use of solar water heaters in the villages to promote the use of solar housing construction, gas and other energy-saving technologies.
在城市住宅建设中积极推广应用太阳能热水器，在村镇住宅建设中推广应用太阳能、沼气等节能技术。
If it can reduce anthropogenic causes to make full use of water-saving sanitary ware, it can save the construction water supply and drainage in terms of the energy required for about 5%.
如果能减少人为原因充分使用节水型卫生器具，就可以节约建筑给排水方面所需能量的5%左右。
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