短語詞組短語Difference modulated laser spectrum 差分調制激光光譜photo -modulated reflectance spectrum 光調制反射光譜frequency modulated laser absorption spectrum 激光頻率調制吸收光譜spectrum modulated 頻譜調制linear amplitude -modulated and frequency-modulated spectrum 線性調幅調頻譜modulated photo -reflection spectrum 光調制光譜spread spectrum modulated 擴頻碼調制 返回 modulated spectrum