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2Â¥2019-07-09 10:24:26
zyh700600
½ð³æ (СÓÐÃûÆø)
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3Â¥2019-07-09 12:41:12
zyh700600
½ð³æ (СÓÐÃûÆø)
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1m^3Ë®µÄÈÈÈÝ = 1*4200*1000 = 4200000 (J/K) 1m^3͵ÄÈÈÈÝ = 8.9*385*1000 = 3426500 (J/K) ¹Ê£º¼Óˮ͹ܻáʹÈÈԴζȸüµÍ |
4Â¥2019-07-09 12:43:46














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