采用“先吸收后分光”方式，氘空心阴极灯或变宽谱线空心阴极灯作激发光源。

This assembly uses mode of "first absorption then spectroscope , excitation source of deuterium hollow cathode lamp or broadening line hollow cathode lamp."

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铬空心阴极灯可代替氘灯作为测定光源。

A chromium hollow cathode lamp was used as a light source instead of the deuterium continuum source.

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