您要查找的是不是：
- The frequency at zero current is 60[kHz]. 零电流的频率为60 [千赫] 。
- A flyback converter with zero current switching (ZCS) resonant and power factor correct (PFC) is proposed. 提出了一种具有零电流关断(ZCS)的反激式单级功率因数校正(PFC)变换器。
- The characteristics of a new zero current switching (ZCS) - PWM cell are analyzed. 分析了一个新的零电流开关(ZCS)单元电路的特性。
- Furthermore, reverse recovery losses of main diodes are minimized, and auxiliary switches commutate at zero current. 此外，续流二极管的反向恢复损耗被降低到最小，辅助开关也实现了零电流开关。
- This method is similar to the current-reversal method except that the measurements are alternated between a fixed source current and zero current. 这种方法和电流反向法类似，只是这种方法在固定的源电流和零电流之间交替进行测量。
- The paper presents a novel ultra-audio frequency (UAF) induction welding power based on ZCS-PWM(Zero Current Switching-Pulse Width Modulation) technology. 介绍一种基于ZCS-PWM(零电流开关-脉宽调制)技术的新型超音频感应焊接电源。
- A phase shift converter can achieve zero voltage switching on the leading leg and zero current switching on the trailing leg by utilizing the reverse avalanche characteristics of IGBT. 利用IGBT的反向雪崩特性，实现伪相移变换器前臂零电压、尾臂零电流开关，使IGBT可在高开关频率下运行，且降低了开关损耗。
- The feature of zero current switching in the rectifier stage was implemented by inserting short periods of zero switching states around the points at which the rectifier stage commutes. 在此设计了一种特殊的换流策略,即在整流级换流前后,在逆变级插入零开关状态,保证了整流级的零电流换流特性。
- Sleep mode with zero current drain 零耗电的睡眠模式
- potentiometric titration at zero current 零点电流电位滴定
- The methods of separation zero current 零线电流分离法
- input zero current digital voltmeter 输入零电流数字电压表
- The mercury dived to ten below zero. 温度突然下降到零下10度。
- de-excitation by passive switching in zero current 无源零开断灭磁
- zero current switching/zero voltage switching 零电流／零电压开关
- zero voltoge and zero current switch 零电压零电流开关
- Now, men, zero in your guns at that ship. 喂，伙计们，把炮口对准那艘船。
- It was five below zero last night. 昨夜温度是零下五度。
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- She broadcasts on current affairs. 她发表时事广播演说。
