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2013-05-23 12:21
求翻译：The word horsepower was first used two hundred years ago. James Watt had made the world’s first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power.Watt decided to find out how much work one strong horse could do in one minute. 是什么意思？ 待解决
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The word horsepower was first used two hundred years ago. James Watt had made the world’s first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power.Watt decided to find out how much work one strong horse could do in one minute.
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2013-05-23 12:21:38
字马力两百年前首次使用。詹姆斯·瓦特制成了世界上第一个广泛使用的蒸汽机。他没有告诉人们它究竟有多么强大，在当时有没有测量power.watt决定找出一个强壮的马可在一分钟内做了多少工作单位。他呼吁该单位之一马力。他与本单位可以衡量他的蒸汽机do.he发现，一匹马，可以解除10英尺到空气中3300磅的重量，在一分钟内的工作。他的引擎在一个minute.because他的发动机没有十倍瓦马多的工作，把它称为十马力的发动机可以举起100英尺3300磅的重量。
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2013-05-23 12:23:18
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2013-05-23 12:24:58
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2013-05-23 12:26:38
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2013-05-23 12:28:18
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