Remove scale, in the process of assembly parts surface oil, in case of rust.

去掉氧化皮，装配过程中零件表面涂上油，以防锈蚀。

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The detection theory of parts surface disfigurement based on the embed image processing system is introduced.

介绍了嵌入式图像处理系统用于零件表面缺陷检测的原理。

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The plasma spraying techniques, which have been widely used in many products design, is a new kind of technology for hardening and protecting parts surface.

等离子喷涂技术是零件表面强化与防护的新工艺，在许多产品的设计上得到了广泛的应用。

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The material also contains negatively charged ions, which can be moved with electric pulses to different parts of the surface.

FORBES: Connect

Mercury is the closest planet to the Sun, and parts of its surface can reach temperatures of 800 degrees Fahrenheit.

FORBES: NASA Has Discovered Water Ice On Mercury

However, because Mercury has virtually no tilt to its axis, there are actually parts of the surface that never see sunlight at all.

FORBES: NASA Has Discovered Water Ice On Mercury