... 双线绦虫 digramma interupta; 双线天线 two-wire antenna; 双线同步示波器 dual-beam synchroscope; ...
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two wire antenna 二线天线
two-wire archimedian planar spiral antenna 双臂阿基米德平面螺旋天线
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This receiver requires an antenna and ground. The ground connection can be made to a water pipe (NOT a gas pipe!). The antenna can be a 50 foot length of wire stretched outdoors between two objects.
此接收机需要天线和地线，地线可以为金属水管(不能是煤气管)，天线可以是50英尺的线挂在两个物体上。
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