Cauprene
聚戊烯橡胶
🗣️ 情景例句
with Mr. Levine?
与Levine先生的邀约？
Newspapers inform us of daily events.
报纸把每天发生的事都告诉了我们。
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。