If oxyacetylene flame or plasma is adopted, surface coat that can impact welding quality shall be removed after cutting.

当采用氧乙炔焰或等离子切割时，切割后必须除去影响焊接质量的表面层。

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Here viruses that infect bacteria, called phage, are engineered such that each virus has on its surface coat a unique random peptide.

在这里，称为噬菌体的使细菌感染的病毒，被设计成这样，即每一种病毒表面都涂了一层独特的随机的肽。

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It can be chosen when the absorptivity rate of surface coat to laser power reaches 30%, and it is not necessary to pursue high absorptivity rate.

在选择表面涂层时，只要所选物质对激光的吸收率超过30%即可满足要求，不必过于追求高吸收率。

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The magnet creates a field which changes the polarity of a tiny, tiny portion of the metal particles which coat each platter's surface.

这个磁体创建一个,能改变覆盖在,磁盘表面小金属粒子的磁极。

哈佛公开课 - 计算机科学课程节选

Starting with two silicon wafers, Soitec machines coat the surface of one with silicon dioxide insulator and embed inside it a thin fault line of hydrogen atoms anywhere from 100 to 20, 000 nanometers below the surface, depending on customers' desired wafer thickness.

FORBES: Magazine Article

The forensics expert said the outer surface of April's coat was waterproof and would not shed fibres but the lining and fake fur of the hood could.

BBC: April Jones

While most brass pens are heavily lacquered to preserve their lustre, the Hatch is finished with just a thin coat intended to wear away quickly, leaving the hygienic surface exposed.

WSJ: To Contagions, This Pen Is Deadlier Than the Sword