Appropriate heatingandcoolingsystem can improve the density, refine grain.
适当的升降温制度能起到提高电极致密度、细化电极晶粒的效果。
2
Gore subsequently has installed solar panels, a geothermal heatingandcoolingsystem, compact fluorescent light bulbs and other energy-saving technologies in his home.
随后，戈尔在家中安上了太阳能电板、地热供热和制冷系统、节能荧光灯和其他节能技术。
3
This paper introduces features of floor heating, working principle and technical situation of sun energy heatingsystemand floor heatingandcoolingsystem by hot water pumping.