名词
中文翻译：单孔定向耦合器
同义词：
['single-port directional coupler', 'single-port directional coupler', 'single-port directional coupler']
例句：
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1. The single-hole directional coupler is used to connect two circuits together.
单孔定向耦合器用于将两个电路连接在一起。
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2.The single-hole directional coupler was designed to improve the signal transmission efficiency.
单孔定向耦合器被设计用来提高信号传输效率。
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3. The single-hole directional coupler is a critical component in the design of high-speed communication systems.
单孔定向耦合器是高速通信系统设计中的关键组件。