commutator GMAT

1.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环两个倍幂等元位子与两个倍对合元位子可逆性问题。

2.We can machine the commutator and voltameter,we have to deliver them to the shop for rectifying.

我们可以把车光并拉槽。至于电流表与电压表，我们得送到车间去调整。

3.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，未经包粹铜片、铜屑、汽车门闩、切片，且铜线厚度不少于1/16英寸，免烧易碎铜线；