The goal of the RSW is to wipe the surface of the windshield automatically (i.e., without user intervention) whenever droplets of liquid are detected on the windshield's exterior surface.

RSW的目标是无论任何时候挡风玻璃外表面检测到液滴时，都能够自动化的进行擦洗(无需用户干预)。

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To clean the touchpad surface, use the same damp cloth used to clean the exterior of the laptop.

触摸板表面要清洁，使用相同的湿布来清洁笔记本电脑的外观。

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Apply lubricating grease SY4019-85 for artillery at the metal surface of exterior of sighting telescope without painting to avoid corrosion.

为防止锈蚀，瞄准镜外部未涂漆的金属表面须涂以炮用润滑脂SY4019-85。

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You only have to scratch the surface of Richmond's proud, bourgeois exterior to find the real economic difficulties that lie beneath.

ECONOMIST: The north-north divide

The typical barrel of a high-power rifle has exterior grooves, called flutes, to reduce weight and create more surface area to enable the barrel to cool faster.

FORBES: Fiber-Optic Sensors Set Stage for Extreme Snipers