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发射谱线
emission line
- 你们看到发射谱线，不是吸收谱线。
It shows you emission lines, no absorption lines. - 看这里，首先，这些发射谱线，就是我刚给你们看的，实验室里测量的，它们在测量同时，就能得到。
You see here, first of all, the emission lines which are measured in the laboratory that I just showed you. They are always done simultaneously with the measurements. - 相对论电子在某种粒子数反转布居的分子云中穿行时，可以产生具有反常强度比的微波发射谱线。
Microwave emission lines with anomalous intensity ratio would be produced when the relativistic electrons move through a, molecular cloud with a certain population inversion.
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