The boundary conditions of standing wave are the continuous electromagnetic vectors on the parallel interfaces.
驻波的边界条件是平行界面上电磁场矢理的连续。
2
A little apart from the surf ace, the longitudinal wave beam may exist and propagate parallel to the surface, yet has to connect with its corresponding gliding irrotational waves.
离开固体表面稍远的区域，可以有平行于表面传播的纵波声束存在，但是需要与相应的滑行集散波相互衔接。
3
From the production mechanisms, the catalytic waves of organic compounds are divided into catalytic hydrogen wave, parallel catalytic hydrogen wave and parallel catalytic wave.