定向增益(Directive Gain) 电话查询服务(Directory Assistance)
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... directional emissivity 定向发射率 directional gain 定向增益 directional shear 方向风切 ...
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短语
天线定向增益
antenna directive gain
;
ADG AntennaDirectiveGain
定方向增益
Directive gain
定向性高增益天线
Directional High Gain Antenna
-
directive gain
directional gain
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