O.d.
abbr. oute rdiameter 外径
🗣️ 情景例句
We are postponing our trip until the weather grows warmer.
我们拟把旅行推迟到天气暖和的一些时候。
Whatever happens, don't worry.
不管什么事情发生，你都不要担心。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。