ringdown
n. 铃流;振铃通知
例句
Using the cavity ringdown method and Changing the used mirrors, we measured the reflectivity of four mirrors under the ordinary condition and obtained the absorption of the cavity.
由于镜片的反射率在不同的环境中是不同的,我们在这里利用腔衰荡四腔镜轮换的方法,在常态下测得了四腔镜的反射率,同时得到了腔内气体在测量范围的吸收情况。