paper/result/perfect/default.typ

@@ -2,15 +2,23 @@
 
 总共有 21 个声子模式。我们把它分成 18 个极性很小的和 3 个极性很强的两类。
 
-// There are 21 phonons in total.
-// We classified them into two categories: 18 negligible-polar phonons and 3 strong-polar phonons.
-The phonons involved in Raman scattering are located in reciprocal space around the #sym.Gamma point,
-  and the exact positions are determined by the wavevectors of the incident and scattered light.
-At each such position, there are 21 phonon modes (degenerate modes are counted as their multiplicity).
-We classify these 21 phonons into two categories based on their polarities.
-The 18 of 21 phonons are classified into negligible-polar phonons (i.e., phonons with zero or very weak polarity),
+对应于不同拉曼入射配置（正入射、掠入射、边入射）的声子位于倒空间中的不同位置。
+它们都位于 Gamma 点附近，与 Gamma 点的距离由入射光波长决定，而与 Gamma 点的相对位置则由入射方向决定。
+对于每一个 Gamma 附近的点，都有 21 个声子模式（简并模式按简并数计）。
+我们将这 21 个声子模式分为两类：18 个极性可以忽略的声子模式（即极性为零或非常弱的声子），在拉曼散射过程中它们的电极性造成的效应可以忽略；
+  和 3 个强极性声子模式，在拉曼光谱中电极性效应是可观测的。
+
+Phonons involved in different Raman incidence configurations (normal, grazing, and edge incidence)
+    are located at different positions in reciprocal space,
+  all of which are near the #sym.Gamma point,
+  with the distance from the #sym.Gamma point determined by the wavelength of the incident light,
+  and the relative position to the #sym.Gamma point determined by the direction of incidence.
+For each such position around the #sym.Gamma point,
+  there are 21 phonon modes (degenerate modes are counted according to their multiplicity).
+We classify these 21 phonon modes into two categories:
+  18 negligible-polar phonons (i.e., phonons with zero or very weak electrical polarity),
     for which the effect of polarity can be ignored in the Raman scattering process;
-  and the other three phonons are strong-polar phonons,
+  and the other three strong-polar phonons,
     where the polarity gives rise to observable effects in the Raman spectra.
 
 这个分类是有意义的。从微观上讲，它也和原子的振动方向有关。