Thermal spraying technology is an important part of surface engineering science. It is a new technology of material aggrandizement and surface character changing.

热喷涂技术是表面工程学的重要组成部分，它是一种材料表面强化和表面改性的新技术。

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With speed up of highway construction in these few years, the science and technology workers are improving on the design of road surface.

随着近年来公路建设步伐的加快，科技工作者对公路路面结构的设计不断作出改进。

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The shell in Yulin Science and Technology Museum is a single-layer reticulated spherical shell, and the outer surface of spherical is unsymmetrical for the building openings and the shape.

榆林科技馆球壳为单层球面网壳，由于建筑门洞以及造型的要求，球壳外表面不对称，球壳的支座呈阶梯形布置。

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The same thing was said about our ability to harness the science and technology to land a man safely on the surface of the moon.

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