阳离子：带有正电荷的一个或一群离子，特点为在电解中向阴极运动。
Cation: an ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.
赛格威生产的电池拥有世界上最大的客户群，公司始终位于车用锂离子电池开发的前列。
Segway is one of the world’s largest customers of large format batteries, and was at the forefront of the development of Lithium Ion batteries for transportation.
利用覆盖-远离子群的概念研究了群的超可解性和幂零性。
The supersolvablity and nilpotency of the finite group G are characterized using the concept of cover-avoiding subgroups.
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