High voltage silicon pile is the key component of the output circuits of color TV and color monitor, whose switch frequency is the direct restrictive factor of line scan.

高压硅堆是彩电和彩色显示器行输出电路中的关键器件，其开关速度的快慢直接限制了行扫描频率的高低。

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Pile length is a key parameter in cement mixing pile composite foundation design.

水泥搅拌桩桩长是复合地基设计中的一个主要参数。

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The calculation of pile internal force is the key in designing piles.

抗滑桩的内力计算是抗滑桩设计的关键。

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Take, for example, the pile of "loyalty cards" and key tags that stores require you to carry around so that you get a supposed "discount" while they collect data for personalizing your promotional experience in the store.

WSJ: The Customer as a God: The Future of Shopping