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与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与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.
我们可以把换向并拉槽。至于流表与压表,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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