The LS coupling representation of electron -ion system is used, the exchange effect is taken into account and the angular factors of collision matrix elements are treated in detail.

其中采用了电子与离子系统的LS耦合表象，考虑了交换效应，仔细处理了碰撞矩阵元的角部分因子。

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"We will use the tremendous capabilities of this ion propulsion system to climb out of orbit around Vesta, travel for almost another three years through the asteroid belt to dwarf planet Ceres and then go into orbit around Ceres and undertake the same kind of measurements there that we'll be doing at Vesta.

VOA: special.2011.07.27

I have shown that by taking Avogadro's number of individual ion pairs and putting them all together in a line, the system's energy became more negative.

我推导出了,从每一个离子对中抽出阿伏加德罗常数,再把它们放在一起在一列中，这个系统的能量就变得更负。

麻省理工公开课 - 固态化学导论课程节选

Boeing will then have the go-ahead to begin retrofitting planes with an enhanced lithium ion battery system.

NPR: FAA Approves Resumption Of Boeing 787 Flights

The main investigation, which also involves the FAA and Boeing, focuses on the 787's cutting-edge lithium ion battery system that powers the plane's auxiliary power unit.

CNN: Quick fix for Dreamliner looks less likely, experts say

The review includes not just the 787's ground-breaking lithium-ion battery system, but how that system works with the aircraft's electronic systems, their certification, manufacture and assembly, he said.

NPR: US Officials Defend Handling Of Boeing 787 Mishaps