另外，本裁切器完全可以避免金属锂带材易出现的粘连现象 和经常性的维护工作。

Moreover, the shearer can totally avoid the frequent adhesion phenomena of metal lithium strip materials and regular maintenance.

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我们在本文中提出了基于亚微米准周期极化铌酸锂实现多波长光子禁带的结构。

We demonstrate a quasi-periodic structure exhibiting multiple photonic band gaps (PBGs) based on sub-micron-period poled lithium niobate (LN).

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It could be hydrogen, it could be helium plus, it could be lithium double plus and so on.

它可能是氢，可能是带一个正电荷的氦，也可能是带两个正电荷的锂，等等。

麻省理工公开课 - 固态化学导论课程节选