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- commutator bar pitch 换向片节距
- Analysis of the Accident of Looping Arc in Steel Mill DC Motor Resulting from High Peak Voltage between Commutator Bars etc. 片间峰值电压高等原因引起轧钢电动机环火事故分析
- She has keyed the piano up to concert pitch. 她已经把钢琴的音调升到音乐会的音高标准。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- The coach built the team up to a fighting pitch. 教练使全队振作起来，准备一搏。
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
- I want to sing at a karaoke bar next. 接下来，我想去卡拉OK酒吧唱歌。
- They that touch pitch will be defiled. 近墨者黑。
- We planned to pitch our camps in the mountains. 我们计划在山里扎营。
- The speaker brought the crowd to fever pitch. 演讲者激起群众高昂的情绪。
- He will have a drink in the bar after work. 下班之后他总去酒吧喝一杯。
- Poor health may be a bar to success in life. 健康不佳可能成为人一生中取得成功的障碍。
- She's go to play the opening bar of the sonata. 她准备演奏这支奏鸣曲的开始数小节。
- The fans rushed onto the pitch in an excited mob. 球迷群情激昂，一窝蜂涌进球场。
- The bar in the slum is a den of iniquity. 这个贫民窟里的小酒吧是一个充满罪恶的场所。
- Let's pitch out the troublemakers. 把这些捣乱分子赶出去。
- The ship crossed the bar safely. 船平安地穿过沙滩。
- The drunk man lost his pouch in the bar. 那个喝醉了的人在酒吧里丢失了钱袋。
- The frequency of the current ripple caused by brush commutation in the DC motor is determined by the number of commutator bars, the number of asynchronous commutated brushes, and the rotation speed. 认为换向造成的电流脉动除了与转速有关以外还与换向片数以及不能同时换向的电刷个数有关。
- That's only an economy at fever pitch. 那只不过是种过热的经济而已。
