The morphology of oxide membrane on each sample surface was observed by SEM.

采用SEM对试样表面生成氧化膜的形貌进行了观察比较。

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While the light beam for measuring is reflected firstly by the sample surface and then send to the detector.

用于实际测量的透射光束，被测样品表面反射后再到达探测器。

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In photoelectric spectral analysis for a steel sample, the result depends on the condition of sample surface.

在对钢样进行光电光谱分析时，其表面情况对分析结果有直接影响。

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Curiosity drilled a hole in Mars to collect a sample of its surface, which is the first time any rover has drilled such a hole on the Red Planet.

FORBES: Curiosity Drills A Hole On Mars

University of Miami pathologist Richard Cote is using Yang's principle of a lensless microscope to pioneer a way to move a microscope across sample cells located on a fixed surface.

FORBES: Magazine Article

Earlier this month, the Mars Curiosity rover drilled into the Martian surface, in the hopes of collecting a sample from the interior of a rock.

FORBES: Curiosity Confirms Rock Sample Found From Beneath Mars