- 二次微分光譜
- derivative spectrum: 導(dǎo)數(shù)光譜
- second derivative: 二次導(dǎo)數(shù); 二階導(dǎo)數(shù)
- derivative absorption spectrum: 導(dǎo)數(shù)吸收光譜
- first derivative spectrum: 一級(jí)導(dǎo)數(shù)光譜
- second derivative action: 二次導(dǎo)數(shù)作用; 二次微分酌
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