Gravitometer
重差计(测定比重用)
🏥 医学释义
比重计，比重测定器
🗣️ 情景例句
Mr. Nelson.
Nelson先生。
I went there on business.
我出差到那儿。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。