spectrum n. (pl. -tra ) 1.【物理學】譜,光譜;波譜;能譜,質譜。 2.【無線電】射頻頻譜;無線電(信號)頻譜。 3.【心理學】(眼睛的)余像;殘像。 4.〔轉義〕范圍,幅度;(連續的)系列。 an absorption spectrum 吸收(光)譜。 a bright line spectrum 線狀光譜。 an optical spectrum 光譜。 a solar spectrum 太陽光譜。 a wide spectrum of opinion 意見的不同幅度甚大。
Solvothermal synthesis and diffuse reflectance spectra of k2mnsnte 4的溶劑熱合成和反射光譜研究
Solid state synthesis , crystal structure and diffuse reflectance spectra of k4sn3se 晶體結構和反射光譜研究
53 maize standard samples diffuse reflectance spectra were collected from 4000cm - 1 ~ 10000cm - 1 at 8 cm - 1 resolution on perkin - elmer spectrum one nts near - infrared instrument at different energy level . 3 samples were scanned 10 times repeatedly at 100 % , 76 % and 34 % energy level for energy variance analysis 結果表明,隨著儀器能量降低,模型相對標準偏差( rsd )有增大趨勢,儀器相對能量從100衰減到18后,模型預測值rsd從2 . 5增至4 . 72 。