Professor Irvine-Halliday used a one-watt bright white L.E.D.

VOA: special.2009.12.21

By the way, l equals one would be the p-orbitals.

顺便说一下，l等于1时就到了p轨道的范围。

麻省理工公开课 - 固态化学导论课程节选

This year,she was named one of the laureates for the L'Oreal-UNESCO Awards for Women in Science.

VOA: standard.2010.03.29