... cutoff basin 封闭盆地 cut-off beam 截止电子注 cut-off bias 截止偏压 ...
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cut off beam 截止电子注
sharp angle cut-off beam 锐截止光束
beam cut-off 闭束 ; 截止射柱
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The charging equilibration time constant decreases with the beam intensity and the thickness of the sample. The surface voltage decays slowly when the electron beam is cut off.
在一定条件下，样品表面电位随着辐照电子束流密度和样品厚度的增加而增大；
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