Undercloth
(压滤机)衬布, 滤布
🗣️ 情景例句
getting the album published?
才能让摄影集出版吗？
So-so.
马马虎虎。
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。