您要查找的是不是：
- Brazed armature connections to the commutator. 转子和换向器直接连接。
- It is very necessary to make sure that the carbon brushes stay in good contact with the commutator. 确定一下碳刷与换向器是否保持良好的接触，是非常必要的。
- The commuter train is never punctual. 市郊往返列车从来不准点。
- Furiously he tested the spark-plugs, stared at the commutator. 他气呼呼地测试着火花塞,眼睛盯着转换器。
- The commuter trains are never punctual. 市郊往返列车从来不准点。
- If the color of the commutator turns redish, the car is over gear. 你可在适正牙比范围内，找出一个牙比可令摩打在最长直路完成后开始收油转湾前达到最高转速为起点，之后再用秒表作标准，在此牙比附近作微调，从而找出最适合自己的牙比。
- The commuter is the queerest bird of all. 上班族是天下最怪异的人。
- The commutator surface showed black and was found with carbon deposit. 如：整流子表面全部呈黑色且积碳。
- Using an ohmmeter check the resistance between the segments of the commutator. 使用欧姆计，检查在换向器之间电阻。
- A spark touched off the gunpowder. 一粒火星引起了火药爆炸。
- John is the spark plug on his rowing team. 约翰是划船队的中坚分子。
- The vital spark in him makes him an artist. 他生气勃勃的活力使他成为一个艺术家。
- Using an ohmmetercheck the resistance between the commutator and the armature core. 使用欧姆计，检查在换向器和电枢之间的电阻。
- We can machine the commutator and voltameter,we have to deliver them to the shop for rectifying. 我们可以把换向器车光并拉槽。至于电流表与电压表，我们得送到车间去调整。
- In my opinion, either the surface of the commutator has become rough and worn, or the coil has been short-circuited. 我看不是换向器表面变粗糙和磨损，就是线圈短路了。
- The commuter trains are never punctual . 市郊往返列车从来不准点。
- The commuters read their papers or stared ahead. 此时，他们或者读着手中的报纸，或者直勾勾地望着前方。
- They spend the winter(s) in a warmer climate. 他们在气候较暖的地方过冬。
- The sweater had shrunk after repeated washing(s). 这件套头毛衣洗过多次已缩水了。
- This paper is a study on the invertibility of the commutator of scalar-idempotent elements and scalar-involutory elements of a unitary ring. 摘要本文研究在一个有单位元的环中两个倍幂等元的换位子与两个倍对合元的换位子的可逆性问题。
