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關注:1
2013-05-23 12:21
求翻譯: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?![]() ![]() 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
字馬力兩百年前首次使用。詹姆斯·瓦特制成了世界上第一個廣泛使用的蒸汽機。他沒有告訴人們它究竟有多么強大,在當時有沒有測量power.watt決定找出一個強壯的馬可在一分鐘內做了多少工作單位。他呼吁該單位之一馬力。他與本單位可以衡量他的蒸汽機do.he發現,一匹馬,可以解除10英尺到空氣中3300磅的重量,在一分鐘內的工作。他的引擎在一個minute.because他的發動機沒有十倍瓦馬多的工作,把它稱為十馬力的發動機可以舉起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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