Theprogrammable controller (PLC) S7-300 is applied in the second layer.

第二层联锁机采用可编程控制器（PLC）S7-300。

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In the third layer, the child font size in the second layer becomes the new parent font size.

在第三个层中，第二层的子字体大小变为新的父字体大小。

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The results show that when the temperature is about 1000K, the vacancy in the second layer begins to diffuse to the surface.

结果表明，当温度为10 0 0K左右时，位于近表面第二层上的空位开始向表面运动；

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At the top, the computer makers control everything, managing customer relationships and farming out orders to their software subsidiaries in the second layer.

ECONOMIST: Software in Japan

It is the biggest change ever in the economy, a second layer.

FORBES: Techquotable

To increase the number of minorities in its student body, UT added a second layer to the Top Ten Percent Law at its flagship campus in Austin eight years later.

FORBES: What Will The Supreme Court Do With Affirmative Action?