如果管中的混合气体是不流动的，那么传递就通过分子扩散来进行。

If the gas mixture in the tube is stagnant, the transfer occurs by molecular diffusion.

youdao

如果管中的混合气体是不流动的，那么传递就通过分子扩散来进行。

If the gas mixture in the tube is stagnant, the transfer occurs by molecular diffusion.

youdao