Alphatron
α粒子电离压强计, α射线管
🗣️ 情景例句
Robbie, run to the car! Robbie
快跑去车子上。
One father is more than a hundred school-masters.
一个父亲胜于一百个教师。
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。