A metal strain gauge on the surface of each membrane senses that deflection and generates a signal that indicates pressure.

在每片硅原子膜的表面有一个金属制压力感应器，能检测压力的大小并发出信号。

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Moreover, they will also be keeping a close eye on the sites' surface and atmospheric characteristics in order to gauge their safety for the landing system and rover.

此外，他们还要密切留意这几个地点的地表和大气特征，以确保着陆系统和探测器的安全。

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BLUING / BLUE UP : Process of using blue dye to coat a surface of a master, gauge, or piece of product to check a flat, circular, or tapered surface.

着色检查：使用蓝色染料涂在模具，量规或者产品表面以检查平面、圆面或者锥面的工序。

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They use a multimillion-dollar machine known as the Meisterbock gauge that laser-scans the entire surface of the vehicle for defects as small as a few millimeters.

WSJ: New Chrysler Battling Old Defects

Satellites have long been used to track ice extent (area), but calculating the thickness of the marine floes requires the overflying spacecraft to gauge the difference between the top of the ice surface and the top of the water - a relatively simple calculation then gives the overall volume.

BBC: Launch success for Esa's Cryosat-2 ice mission