Prewarming
预热, 预加温
🗣️ 情景例句
And plus, if you are not completely satisfied, you can return it to us.
并且，如果您不是百分百的满意，你可以将产品退还给我们。
Will it hurt?
不知道会不会受伤？
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first.
然后记录下的是横向波的到达，横向波比纵向波传播得慢，在纵向波到达几分钟后才能到达。