This paper is a study on the invertibility of the commutator of scalar-idempotent elements and scalar-involutory elements of a unitary ring.
本文研究在一个有单位元的环两个倍幂等元的换位子
两个倍对合元的换位子的可逆性问题。
This paper is a study on the invertibility of the commutator of scalar-idempotent elements and scalar-involutory elements of a unitary ring.
本文研究在一个有单位元的环两个倍幂等元的换位子
两个倍对合元的换位子的可逆性问题。
We can machine the commutator and voltameter,we have to deliver them to the shop for rectifying.
我们可以把换向器光并拉槽。至于
流
压
,我们得送到
间去调整。
Shall consist of clean, unalloyed, uncoated copper scrap clippings, punchings, bus bars, commutator segments and wire not less than 1/16 of the inch thick, free o burnt wire which is brittle;
此铜线要求是干净的,未经包裹的纯粹铜片、铜屑、汽门闩、换向器切片,且铜线的厚度不少于1/16英寸,免烧易碎的铜线;
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