ayuyu 发表于 2007-1-22 14:05 测试空间信号的电场强度E(V/m),可得到该点的功率通量密度W(W/m^2)。 W=(E^2)/R_air 式中:
Undo
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Table
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Autotypeset Left Center Right
FloatLeft FloatRight Orderedlist Unorderedlist
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