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- Low frequency non-directional radio beacon 低频全向无线电信标
- LOFT (Low Frequency Radio Telescope) 低频射电望远镜
- propagation of low frequency radio wave 低频电波传播
- The plane homed in on the radio beacon. 飞机遵循导航台信号降落。
- propagation of very low frequency radio wave 甚低频电波传播
- propagation of extremely low frequency radio wave 极低频电波传播
- Low Frequency Radio Signatures of Coronal Mass Ejections 日冕物质抛射的低频射电特征
- Plane F103 has homed in on the radio beacon. F103号飞机已按照无线电信号飞回基地了。
- propagation of extremely low frequency ELF and voice frequency radio wave 极低频与音频电波传播
- The plane homedin on the radio beacon. 飞机遵循导航台信号降落。
- propagation of extremely low frequency and voice frequency radio wave 极低频与音频电波传播
- The aircraft pilots picked up signals from a radio beacon. 飞机驾驶员听到了无线电航空信标的信号。
- Planes in this airport are guided in by radio beacon. 这个机场的飞机由无线电导航台导引降落。
- low frequency radio astronomy 低频射电天文学
- In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply. 在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。
- Bumper Beeper Radio beacon transmitter, hidden in or on a vehicle for use with radio tailing equipment. 防撞器蜂鸣器无线电信标发射机,隐藏在车辆内侧或外侧,用于无线嵌入设备。
- Note: The emergency radio beacon operates automatically in a few seconds and drifts out to the end of the lanyard. 注:应急无线电信标将在几秒钟后自动工作并向外飘浮走;直到固定绳完全展开.
- The abnormal colours of seedlings turned a low frequency. 颜色异常的苗木出现频率较低。
- Laser direct writing of micro-OVD with low frequency templates[J]. 引用该论文 魏国军;周小红;周雷;陈林森.
- I began to work feverishly on the radio beacons. 我开始拼命地研究无线电信标。
