Commutative right is the product that the history develops certain level.

Xu Jinzhong proved module over commutative ring is injective if and only if it is flat.

徐金中证明了交换环上单模是内射的当且仅当它为平坦的.

After commutative process is finished, commodity producer obtains value, consumer obtains use value.

交换过程完成后, 商品生产者获得价值, 消费者获得使用价值.

So, the work product that completes commutative process only just is commodity.

所以, 只有完成交换过程的劳动产品才是商品.

The central notion in commutative algebra is that of a prime ideal.

交换代数中最核心的概念就是素理想.

The course may be taken concurrently with 18.705, Commutative Algebra.

本课程可以和18.705交换代数一起学习.

The surgeon of a famed world discovered the commutative method of person head.

一位闻名世界的外科医生发现了人脑的交换方法.

Multiplication of permutations , unlike multiplication of numbers, is not always commutative.

置换的乘法不同于数的乘法, 它并不一定满足交换律.

Students should have some familiarity with commutative algebra and basic topology.

学生需要对交换代数和基本拓扑学有一定的了解.

This depends on the design of the generator commutator is required in a dc generator.

如何得知发电机所产生的电流是文流电还是直流电?

There are sparks at the commutator . Please find out the trouble andit right.

换向器上有火花, 请你找出毛病并解决.

Using an ohmmeter check 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.

By a quarter of wave length commutator principle, combining with electromagnetic wave absorb of filling material.

利用四分之一波长转换器原理, 结合填充材制成电磁波吸收体.

If not, the trouble must be with the surface of the commutator.

如果不是的话, 那一定是换向器表面有问题了.

Check the commutator for ground.

检查换向器是否接地.

The commutator ring allows for external connection to specific windings in the rotor via the brushes.

该换向器环允许外部连接的转子绕组通过具体的刷子.

Highly experienced in permanent magnet carbon brush, commutator, and other critical motor component & material selection.

精通磁铁、炭刷, 换向器及其它电机关键零部件 和 物料的选择.

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.

Tesla suggested that it might be possible to design a motor without a commutator.

电刷整流子是一种铜线制造的电流接点,在线圈每转一圈时,它会使电流反转两次,造成方向相反的磁场,让马达不断转动.

Commutator is a function from the rectifier.

换向器是起整流作用.

Are sold at the entrance of the motor, DC, AC, commutator, a new, the old have.

门口都是卖电机的, 直流 、 交流 、 整流子 、 新的 、 旧的都有.