The electrical property of flame-retardant engineering plastics, especially comparative tracking index (CTI) is described.

这对阻燃型工程塑料的电性能，尤其是比较跟踪指数（CTI）进行了描述。

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This paper introduces a new copper foil adhesive for bakelite paper laminate. The adhesive raises the comparative tracking index (CTI), proof welding, peel strength of the laminate.

本文介绍了一种新的覆铜板铜箔胶粘剂，应用于酚醛纸板上，具有较高的耐漏电起痕性；

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In index tracking, the bigger you get, the lower your costs, and the more closely you follow the index.

在指数跟踪方面，规模越大，成本越低，你跟踪的指数越准确。

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Thus any fund manager tracking the index must, in effect, lend more to the countries borrowing the most.

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So these managers eschew the passive approach to tracking an index in favor of a semi-active approach to portfolio management.

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U.S. mutual funds that invested in large growth stocks in 2012 returned an average of 15.3%, while the similar ETFs tracking the index returned 16.4%, according to Morningstar.

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