Arsinyl
甲胂钠
🗣️ 情景例句
Your luggage is all here?
你的行李就这么多吗？
How many handfuls are you going to get?
你要取几把？
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。