Campimeter
[医] 平面视野计
🗣️ 情景例句
She's hard to resist.
真是人见人爱。
There is nothing which has not been bitter before being ripe.
事情在成功前没有不艰苦的。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。