最用途广泛的机械工具是引擎车床，提供一个原则轴转台式主运动，当适当的合闸动作被给予到工具时。
The most widely used machine tool is the engine lathe, which provides a principle axis rotary primary motion to while the appropriate feed motions are imparted to the tool.
连用来制作这些零件的工具都是他自己做的——用来发动引擎的车床除外。
He also made the tools that made them, except for the lathes and turning engines.
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