It is a key mechanism of evolution.

这是一个关键机制的演变。

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Atherosclerosis is a key mechanism for these cardiovascular events.

动脉粥样硬化是心血管事件的关键机制。

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Decomposing a table into regions is a key mechanism for efficiently handling large tables.

将一个表分解为多个区域是高效处理大型表的关键机制。

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But whether such an agreement is reached in Rio or not, a tipping point is approaching as investors, governments and even many influential corporations come to see such disclosure as a key mechanism for strengthening markets and essential to building a sustainable economy.

FORBES: A Tipping Point on Sustainability Disclosure in Rio?

He says mTOR may be a key resistance mechanism that cells use to evade the effects of Herceptin.

FORBES: Magazine Article

It is the key funding mechanism -- the "affordable" aspect of the Patient Protection and Affordable Care Act -- that makes most of the other 450 or so provisions possible.

CNN: STORY HIGHLIGHTS