你还可以利用剪切版这个技巧来复制一个方程通过计算器来计算。比如，复制下面这个方程到剪切版。

You can also use the clipboard trick to copy an equation into the calculator and process it. For instance, copy this to the clipboard.

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新手机的操作系统是3.0版本的，它首次问世是在三月份，3.0版本将在所有程序中增添剪切、复制和粘贴功能，苹果手机用户长期要求增加这项功能。

The new iPhone OS 3.0, which was first unveiled in March, will have cut, copy and paste capabilities for all applications, which iPhone users have long demanded.

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复制底部的模特图层，并将其置于顶部，然后将其设为剪切蒙版。

Duplicate the bottom layer and place it on the top. Then place it in the clipping mask.

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