line spectrum TEF/TCF常用TEF/TCF专四

线(状)光谱； 线(状)谱； (光)谱线 newline spectrum的英文翻译是什么意思，词典释义与在线翻译：英英释义Noun:a spectrum in which energy is concentrated at particular wavelengths; produced by excited atoms and ions as they fall back to a lower energy level

line spectrum的用法和样例：例句A particular spectrum line corresponds to a certain definite light wavelength.
某特定的谱线就代表一个确定光的波长。In astronomical situations, the natural line width is seldom directly observed.
在天文学研究中，谱线固有宽度很少能直接观测到。

Research on Technique of passive sonar Target Recognition Based on Line Spectrum Feature ExtractionResearch on Technique of passive sonar Target Recognition Based on Line Spectrum Feature Extraction

基于线谱特征提取的被动声纳目标识技术研究

线(状)光谱； 线(状)谱； (光)谱线 newline spectrum的英文翻译是什么意思，词典释义与在线翻译：英英释义Noun:a线(状)光谱； 线(状)谱； (光)谱线 newline spectrum的英文翻译是什么意思，词典释义与在线翻译：英英释义Noun:a

某特定的谱线就代表一个确定光的波长。