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- This paper investigated the characteristics of 70 W MHL operating with DC, Low frequency square wave (LFSW) and magnetic ballasts, and the results may assist the matching of HID lamps and ballasts. 本文比较研究了直流电子镇流器、低频方波镇流器和电感镇流器燃点70 W小功率金卤灯过程中对灯特性的影响，为镇流器和金卤灯的匹配提供依据。
- field frequency square wave response 场频方波响应
- A Low Frequency Square Wave HID Electronic Ballast with Digital Control 一种数字控制的低频方波HID灯用电子镇流器
- 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
- Treatment of chronic waist pain by low frequency square wave combined with exercise 低频方波配合运动疗法治疗慢性腰痛的临床报告
- 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。
- Janos Melis,Oscar Vila-Masot,”Low frequency square wave electronic ballast for gas discharge lamps”,United states patent No.5428268,date of patent:June,27.1995 林国庆，陈为，陈和平.;新型恒功率输出开关变换器控制策略的研究[J]
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- 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。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Excellent staable are from Ac square wave, avoid high frequency hazard. 交流方波自稳弧性能优异,免除高频危害。
- low frequency square wave 低频方波
- frequency square 频率正方
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
