A tool is usually more simple than a machine; it is generally used with the hand, whilst a machine is frequently moved by animal or steam power.

-- Charles Babbage 巴贝奇

工具通常比机器简单;它通常是用手，而机器经常是由动物或蒸汽动力移动。

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Machine Steam

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The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

制造链式反应机的基本要点当然是确保每个裂变产生一定数量的中子，其中一些中子会再次产生裂变。

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Oh the nerves, the nerves; the mysteries of this machine called man! Oh the little that unhinges it, poor creatures that we are!

哦，神经，神经;这台神秘的机器叫人!啊，使它精神错乱的小东西，我们是多么可怜的生灵啊!

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People have to understand how important it is for the players to let off steam, switch off and relax.

人们必须明白让球员放松、放松和放松是多么重要。

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