兑水 发表于 2009-11-19 07:25:08

ASTM F 418-1977 测量霍尔效应用恒定成分范围的外延磷化砷化...

F418-77(2002) Standard Practice for Preparation of Samples of the Constant Composition Region of Epitaxial Gallium Arsenide Phosphide for Hall Effect Measurements
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