我国每年消耗的煤约10亿吨,如果按效率30%来计算,我国一年实际利用煤的能量是多少焦?如果把效率提高1%相当于每天节约多少万吨煤?(煤的热值:3.0×10七次方J/kg)
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![我国每年消耗的煤约10亿吨,如果按效率30%来计算,我国一年实际利用煤的能量是多少焦?如果把效率提高1%相当于每天节约多少万吨煤?(煤的热值:3.0×10七次方J/kg)](/uploads/image/z/9761428-28-8.jpg?t=%E6%88%91%E5%9B%BD%E6%AF%8F%E5%B9%B4%E6%B6%88%E8%80%97%E7%9A%84%E7%85%A4%E7%BA%A610%E4%BA%BF%E5%90%A8%2C%E5%A6%82%E6%9E%9C%E6%8C%89%E6%95%88%E7%8E%8730%25%E6%9D%A5%E8%AE%A1%E7%AE%97%2C%E6%88%91%E5%9B%BD%E4%B8%80%E5%B9%B4%E5%AE%9E%E9%99%85%E5%88%A9%E7%94%A8%E7%85%A4%E7%9A%84%E8%83%BD%E9%87%8F%E6%98%AF%E5%A4%9A%E5%B0%91%E7%84%A6%3F%E5%A6%82%E6%9E%9C%E6%8A%8A%E6%95%88%E7%8E%87%E6%8F%90%E9%AB%981%25%E7%9B%B8%E5%BD%93%E4%BA%8E%E6%AF%8F%E5%A4%A9%E8%8A%82%E7%BA%A6%E5%A4%9A%E5%B0%91%E4%B8%87%E5%90%A8%E7%85%A4%3F%EF%BC%88%E7%85%A4%E7%9A%84%E7%83%AD%E5%80%BC%EF%BC%9A3.0%C3%9710%E4%B8%83%E6%AC%A1%E6%96%B9J%2Fkg%EF%BC%89)
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