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- maximum usable frequency prediction 最高可用频率预测
- HF frequency prediction 短波频率预测
- Operating in the heavy congested SW band, HF radars use a quasi-random step frequency signal to avoid the interference bands. 高频雷达工作在电磁环境十分恶劣的短波段,为避开干扰严重的频段,采用一种准随机跳频信号。
- Natural Frequency Prediction of Electrical Machines with Small-medium Size 中小型异步电动机振动频率计算
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Abstract： Operating in the heavy congested SW band,it is difficult for HF radars to find continuously useable waveband for signal modulation. 摘 要： 高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
- The hypothesis can be supported by establishing a correlation between the gene frequencies predicted by the strategy, and those expressed in a population. 如果能在该策略预测的基因频率与在群体中表达的基因频率之间建立相关，该假说可得到支持。
- HF has a pungent odor. It is extremely corrosive. HF有一种刺激性气味。它是极强的腐蚀剂。
- HF Hanguan processing, steel wholesale and retail. 高频焊管加工，钢材批发兼零售。
- Mrs. SW lay down, but could not sleep. 石青嫂子有些睡不着了。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- READ THE "KEY IN IGNITION SW" STATUS. 读
- HF acid detecting paint to ensure valve integrity. 用于保证阀门完整性的氢氟酸检测漆。
- DOES THE DRB SHOW "KEY IN IGNITION SW: CLOSED"? DRB显示“KEY IN INIGNITION：CLOSED”吗?
- Remove victim from source of HF fumes. 把受害人从HF烟雾源转移走。
- In the name of all the athletes: sw? 以全体运动员的名义?
- Troubleshooting of HW and SW issue. 发现并解决硬件或软件问题。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Performance requirement for SW SSB station of ship. 长江船用短波单边带电台性能要求。
