In any given period the debt stock grows by the existing debt stock (d) multiplied by r-g, less the primary budget balance (p).

在任何给定时期，债务按照现有债务与(r - g)的乘积增长，已扣除基本预算平衡(p)。

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The most important function of vitamin D is known to maintain the balance of human calcium metabolism.

已知维生素D最重要的功能是维持人体钙离子代谢的平衡。

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For greater creative control, an Intelligent Preview function indicates the effects of exposure, white balance, and D-Range Optimiser adjustments prior to shooting.

对于更大的创造性控制，智能预览功能显示，暴露的影响，白平衡和D -范围优化调整前拍摄。

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They'd balance a spoon-shaped piece of magnetic rock on any flat surface, and since it was magnetic, the handle would swivel to align itself with the Earth's magnetic poles.

FORBES: Magazine Article

If you're curious about your heart-rate variability and the other data that can be gleaned from it, I'd recommend the HeartMath Inner Balance for a comprehensive approach.

WSJ: Review of Tink�� and HeartMath Inner Balance Sensor for iOS

Just like 3-D, it has a very clean balance sheet.

FORBES: Why 3-D Printing, Biotech Testing And Swimming Pools Are Good Investments