The design of digital automatic temperature controlwater-heater is introduced.
介绍了数字式自动控温热水器的设计思想。
2
As a result, to controlwater eutrophication of these lakes, it is not most urgent to control nitrogen deposition but to control the other sources of nitrogen pollution mentioned above.
Work was energetically carried forward to improve the water environment of Taihu Lake and prevent and controlwater pollution in the Liao, Huai and Songhua rivers and other key water basins.