常見例句雙語例句Light source modulation harmonic measurement is presented in this paper. The ratio of the fundamental and second-harmonic signal presented can be used for eliminating optical interference.利用光源調(diào)制實現(xiàn)氣體濃度的諧波檢測，用二次諧波與一次諧波的比值來消除光路干擾。 返回 second-harmonic signal