它的主要特点是适用于多种相数的步进电机，可在整步或半步方式下工作。

Its major characteristic is suitable for polyphase walking electromotor and can work in full or half step.

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接着从对称性、力波阶数等角度研究了SR 电机相数及绕组连接方式、极数、并联支路数的选择问题。

Then the selections of phase number, winding connection, pole number and number of branches in parallel are optimized according to the SRM's symmetry and order of force wave.

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从有刷直流电动机的绕组模型出发 ，探讨了永磁无刷直流电动机相数的选择以及与之相适应的绕组联接 ，并就绕组的出力情况作了一些分析 。

This paper studies phase selecting and winding connection of brushless DC motor according to brush DC motor winding model, and analyses the effectiveness of winding on working condition.

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So here, what I'd like you to do is identify the correct radial probability distribution plot for a 5 s orbital, and also make sure that it matches up with the right number of radial nodes that you would expect.

这里，你们要辨认,哪个是５ｓ轨道的正确概率分布，并且确保它和你们,预期的节点数相符合。

麻省理工公开课 - 化学原理课程节选

Knowing that, I'm going to say, OK, how many pigs are there, well that's just how we're, however many I had total, minus that amount, and then I can see, how many legs does that give, and then I can check, that the number of legs that I would get for that solution, is it even equal to the number of legs I started with, ah! Interesting. A return.

它将给我返回头的总数，知道了这些之后我可以说好了,有多少猪呢，无论有多少组鸡的数目，我只要用总数减去那个值,之后我就可以知道一共有多少条腿,然后再把这个值和题目中的腿数相比较，看它是否等于一开始的腿数,啊！真有趣，有一个返回值。

麻省理工公开课 - 计算机科学及编程导论课程节选