Income and expenditures exactly balance.

收入和支出正好相抵。

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By contrast, rules are only executed when the conditions for that rule are exactly matched as a result of other system processing (for example, applying payment against an outstanding balance).

与之相对，只有在其他系统处理(例如，为未清偿余款提供支付)导致准确匹配相应规则的条件时，该规则才会执行。

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For example, you can see exactly what effect your Settings will have before you take the shot (white balance, exposure, focus, and so on).

打个比方，通过电子取景器，在拍摄前，你可以看到按下快门后的出片效果(白平衡，曝光，对焦等等)。

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As Mr Montesinos went to ground, and the president hunted for him, Peruvians (and foreign diplomats) tried to work out exactly where the balance of power lay.

ECONOMIST: Peru

No one knows exactly what the right balance of debt and equity is in an economy, but the shrinkage of securitisation in particular makes it more likely that the process of deleveraging will overshoot.

ECONOMIST: Banks will still make money, just less of it

"He's always had this catlike ability to find his balance in the air and to know exactly how to move his body, while Steven has had to work at it, " says their father.

WSJ: Two Brothers, One Goal