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随着科学技术的不断发展,金和银的用途已越来越广泛,这两种金属正在更好地为人类服务。 在广泛利用太阳能的今天金银大有用武之地。将银涂在巨大的弧形镜上,可聚集阳光,并使其转变成热能和电。美国曾用78千克银涂在2万多个反射镜上,获得了31万千瓦的电力。涂有金薄膜的玻璃用作建筑物的窗户,光热绝缘性好,既能降低阳光射入室内的强度,又能减少室内的温度散失。
With the continuous development of science and technology, the use of gold and silver has become more and more widespread, and both metals are serving humankind better. In today’s extensive use of solar energy silver and gold come in handy. The silver is coated on a huge curved mirror, the sun can gather and make it into heat and electricity. The United States used 78 kilograms of silver painted on more than 20,000 reflectors and obtained 310,000 kilowatts of electricity. The glass coated with gold film is used as the window of the building and has good thermal and light insulation, which not only reduces the intensity of sunlight incident on the room, but also reduces the indoor temperature loss.