pure nitrogen atmosphere的意思|示意

One crucial part of this cycle-the fixing of pure nitrogen from the atmosphere into useful nitrogen-containing chemicals-depends more or less entirely on living things (lightning helps a bit).

氮循环的一个关键组成部分就是——在大气中，将纯净的氮固定为成含氮化合物的形式——这或多或少要完全依赖于生物(闪电仅起一点儿作用)。

The deep levels in electron irradiated CZ silicon single crystal grown in pure nitrogen protective atmosphere has been studied.

本文研究了电子辐照在氮保护气氛中生长的直拉硅单晶中引入的深能级。