You can take heat energy and convert it to work energy and vice versa, and it doesn't say anything about that you have to waste heat if you're going to transformheat into work.
We will comprehensively utilize mineral resources, recycle industrial waste, use by-product heat and pressure to generate electricity, and transform household solid waste into resources.
推进矿产资源综合利用、工业废物回收利用、余热余压发电和生活垃圾资源化利用。
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Electrical effect. Two different metals welded together can transformheat energy into electrical energy. This principle is used in the refinery to measure temperature by use of thermocouples.