A-c transmission
[电] 交流输电
🧩 词语组成解析
🗣️ 情景例句
Hmmm.
嗯。
You're very kind to take the trouble to help me.
谢谢你不怕麻烦帮助我。
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。