Since Earth’s rotation rate varies, so would the value of one second when it’s defined as a fraction of the time it takes for one spin of the Earth on its axis.

由于地球自转速率发生偏离，因此当把地球绕中轴旋转一圈作为一个单位时，（这种偏离）就相当于一秒钟时间。

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Spindle bearing on the stability of operation in direct influence on the processing quality, once the spindle rotation precision decrease of the machine tool use value will be low.

主轴在轴承上运转的平稳性直接影响工件的加工质量，一旦主轴的旋转精度降低，则机床的使用价值就会降低。

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Devise a scheme to map the tag property to rotation. On every rotation update the tag value.

设计了一个地图标记属性的旋转方案。在每一个旋转更新标签值。

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Armed with index funds and strategies like sector rotation, relative value and tactical asset allocation, these advisers all attempt to earn their keep by beating benchmarks net of fees.

FORBES: A Magical Tax-Loss Harvesting Machine?

That is what makes the use of sector rotation strategies so compelling: Whereas growth and value have long been sold as a way to break the market down into two distinct exposure groups, sectors allow you to break the market into 10 distinct exposure groups with unmatched flexibility for fine-tuning.

FORBES: Sector Investing Much Smarter Than Trying To Guess What's Growth And Value

Lincecum has proven to have significant value to the Giants beyond the starting rotation and it has allowed him to work from a different mindset as a reliever.

FORBES: Lincecum's Reinvention Has Positively Affected His Overall Value to the World Champion Giants