然后再将剩余的物质精炼，最终生产出了能被汽车利用的燃料。

The leftover products are then refined to produce a fuel that cars can use.

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文件打开，程序首先将当前的字符串写入文件中，然后再将剩余的行(最多100行)写入文件中。

The file opens, the program writes the current string first, and then writes the remaining (up to 100) lines to the file.

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将第一捆毛线从中间分开，使之形成一个X形。 然后再将剩余毛线剪至比第一层略短的长度(我的短4英寸)，组成第二捆，系起来。

Divide the sides of the first bundle in half so that it’s the shape of an X. Cut a second bundle of yarn into shorter lengths than the first (mine were 4″ shorter) and tie.

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