建设数控机床和微控制器。这是毫不奇怪的几种不同的格式已经经过多年的演变。

Given the variety of machine tool types and the many different companies that build NC machine tools and MCUS .

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经过多年，牙签演变为一个铅笔大小的咀嚼棒。

Over the years the toothpick evolved into a chewstick, which was the size of a pencil.

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经过多年，牙签演变为一个铅笔大小的咀嚼棒。

Over the years the toothpick evolved into a chewstick, which was the size of a pencil.

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