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- This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter. 这种高频交流电流产生前一章提到过的高频无线电波。
- variable ratio frequency changer 可变频率比变频器
- constant ratio frequency changer 恒比变频器, 定比变频器
- The audio frequency alternately service system(VOD), and indoors viewability bill inquiry service. 视音频交互服务系统（VOD），提供客房内可视性帐单查询服务；
- variable division ratio frequency divider 可变比分频器
- Y-doped zinc oxide(ZYO)thin films were prepared by middle frequency alternative magnetron sputtering on glass substrates with ZYO ceramic targets. 利用中频磁控溅射法,溅射氧化锌钇(ZYO)陶瓷靶材,在玻璃基底上制备ZYO透明导电薄膜。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- low frequency alternating voltage superimpose law 低频交流电压叠加法
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- double frequency alternating current generator 双频交流发生器
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- 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。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- The ratio of men to women was two to one. 男女的比例是二比一。
- high frequency alternator 高频交流发电机
