Knudsen number
[化] 克努森数
🧩 词语组成解析
n. 努森（M·H·C, 1871-1949, 丹麦物理学家）
🗣️ 情景例句
And the new drawings for the toy spaceship.
还有玩具太空船的新草图。
He can't decide what to do.
他不能决定做什么。
Even so, people are going to find it difficult to get to work.
即使这样，人们仍会感到上班有困难。