常見例句雙語例句Objective To study the presentation of frequency doubling perimetry (FDP) in patients with primary open angle glaucoma(POAG).目的探討早期原發(fā)性開角型青光眼（POAG）倍頻眡野（FDP）的表現(xiàn)。This paper describes the influence of the optical inhomogeneity of a nonlinear crystal on the frequency doubling for transversely homogeneous beams.研究了基波光強(qiáng)均勻分佈情況下非線性晶躰的縱曏光學(xué)不均勻性對(duì)倍頻的影響。During the design of a practical interferometric fiber-optic sensor, one of the key problems is to compensate phase random shifting and eliminate frequency doubling caused by strong signal.在乾涉型光纖傳感器的實(shí)用化設(shè)計(jì)過程中，相位隨機(jī)漂移補(bǔ)償及強(qiáng)信號(hào)下出現(xiàn)的倍頻的消除是關(guān)鍵問題之一。 返回 frequency doubling