Peclet number
[化] 沛克莱数
🧩 词语组成解析
🗣️ 情景例句
Do you remember, Michelle?
你还记得吗， Michelle？
He must needs swim that is held up by the chin.
身不由己，只得从命。
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。