So if you have some region of space S and you call its boundary surface S and you let n be the normal vector that goes out of the region R.
如果存在一些区域空间,边界为曲面,定义n为指向区域R外的法向量。
On the contrary, rock 'n' roll might cheer you up and help you let out emotions.
相反地，摇滚乐可以让你精神一振并释放情绪。
On the contrary, rock 'n' roll might cheer you up and help you let out emotions.
相反地，摇滚乐可以让你精神一振并释放情绪。
应用推荐