In this paper the composition of the dark-brown layer is analysed with AES and ESCA and the specific contact resistance has also been measured.

本文叙述了对这一褐色层进行俄歇电子能谱学(aes)和化学分析电子能谱学(esca)研究结果。测定了比接触电阻。

youdao

The laser energy removes the brown pigment, or melanin, from the top layer of the iris, and the blue eye colour emerges over the following two to three weeks.

激光能去除眼球虹膜最外层的棕色素或黑色素，而蓝眼珠会在两到三周之后显现。

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Many more are believed to be inside the debris, or buried under the layer of brown mud that the tsunami left behind.

相信更多的失踪者埋在瓦砾之中，或者埋在海啸留下的那层褐色土壤之下。

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However,brown rice does not last as long as white rice because of the oil-rich layer of bran.

VOA: special.2010.06.30

Getting out of its way took the tires of the Jaguar XJ out of ruts on bare asphalt and onto a thick layer of icy brown sludge deposited by an entire day of freezing rain.

FORBES: Test Drive: 2013 Jaguar XJ Gets All Wheel Drive, And It's Great

Mongolian spots (technically named congenital dermal melanocytosis) are flat bluish-green, gray or light brown areas where cells called melanocytes have been trapped in a layer of the skin called the dermis.

CNN: What are Mongolian spots?