The microscope works by scanning a focused beam of electrons across an object.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
A single pair of beams does not, however, produce a useful image. To do that requires scanning the object beam through the target about a hundred different ways.
不过仅利用一对光束并不能得到有用的图像，还需要从大约100个不同的角度让物体光束扫描目标。
Thee microscope works by scanning a focused beam of electrons across an object.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
A method of determining the highness of an ideal object by beam scanning in the vertical plane and amplitude comparison.
提出了一种采用波束扫描与多波束目标幅度比较相结合实现目标高度测定的方法。
A method of determining the highness of an ideal object by beam scanning in the vertical plane and amplitude comparison.
提出了一种采用波束扫描与多波束目标幅度比较相结合实现目标高度测定的方法。
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