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。

youdao

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。

youdao

Seepage control in dam, design of freezing resistance for concrete face slab, new caulking water sealing material and surface coat on face slab are mainly presented.

本文重点介绍坝体渗流控制，混凝土面板抗冻设计，及新型嵌缝止水材料，面板表面涂料的研究。

youdao

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