I just wanted to remind you, just to clarify what happened at the end, we got the diffusion equation from two bits of information.
我仅仅是想让你们想起来，仅仅是想讲明上次课结束时说了什么，我们从两方面得到了扩散方程。
2
The Champs Elysees, a high-end private custom aroma for spatial diffusion, advocates extracting natural essence and improving life quality with science and technology.
香榭尔香氛—一个倡导将用科技萃取自然精华，用科技改善生活品质的高端香氛专属定制与空间传播大师。
3
A totally new concept on mass transport path and diffusion mechanisms, which were different from the traditional thoughts, were raised at the end.