名词
中文翻译：天线元件方向性
同义词：
['directional antenna element', 'directional gain']
例句：
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1. The antenna element is crucial for the communication system.
天线元件对于通信系统至关重要。
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2.The directional antenna element can enhance the signal strength.
定向天线元件可以增强信号强度。
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3. The directional gain of the antenna element is measured in dB.
天线元件的定向增益以分贝为单位测量。