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- microwave density modulation 微波密度调制
- The suggested system consists of high frequency(HF) resonant inverter,HF transformer and HFAC pulse density modulation (PDM) converter. 该系统由高频谐振逆变器、高频变压器和高频交流脉冲密度调制变频器组成。
- A novel topologic structure of high frequency AC pulse density modulation converter is proposed,and its operation principle,control scheme and design are described in detail. 提出了一种新颖的高频交流脉冲密度调制变频器的拓扑结构,并详细阐述了工作原理、控制方案和设计方法。
- The selection rule of the hysteresis width has been developed in order to make the THD and RMS value of the output voltage to be the best with high efficiency, according to the principle of pulse density modulation. 根据脉冲密度调制技术的原理导出了使输出电压失真度最小、有效值最大,系统效率也较高的环宽取值公式。
- This controller integrates pulse width modulation(PWM) and pulse density modulation(PDM) together,and can easily change between the two modulations. 该设计集成了脉冲宽度调制(PWM)和脉冲密度调制(PDM)两种调制方式,并可以在两者间切换。
- We cooked the fish in the microwave oven. 我们在微波炉中煮鱼。
- Density modulation produced by ultrashort laser pulses and the phase reflection induced in underdense plasmas 激光脉冲诱导的等离子体密度调制及其产生的相位反射
- The pie is not very hot. Can you microwave it a bit more? 这个饼不是很热的,你再用微波炉加热一会好吗?
- The Design and Simulation of Electric Vehicle Drive System with High Frequency AC Pulse Density Modulation 电动汽车高频交流脉冲密度驱动系统的设计与仿真
- The density of population in this city is very high. 这个城市的人口密度非常高。
- Never microwave egg in the shell. 勿将带壳的鸡蛋放入微波炉内加热。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- Theoretical and numerical studies of density modulated whistlers 密度调制啸声的理论和数值研究
- I'll unthaw the meat in the microwave oven. 我要用微波炉把肉解冻。
- There is a microwave over inside of the closet. 碗橱里有一台微波炉。
- We cooked the pizza in the microwave oven. 我们在微波炉中热比萨饼。
- We often heat leftovers with the microwave. 我们常用微波炉热剩饭菜。
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
- Yes,ma'am,we sell a number of microwave oven types. 是的,太太,我们销售很多款型的微波炉。
- The population density is evened out. 种群密度亦趋于均匀化。