paraboloid

基本解释

It is this guy.If you continue to follow your normal vector, see, they are actually pointing up and into the paraboloid.
就是这它了，如果你继续跟着法向量看，会看到它们实际上，指向上并且指向抛物面里。
After 10 years of research, they proved earlier this year that a curved shape called a hyperbolic paraboloid, which they and others had been folding for years, doesn't actually exist.
经过10年的研究，他们在今年年初证明了他们以及其他人已经折了好几年的一个叫双曲线抛物面的曲面实际上并不存在。
That was our first example. And, of course, if you're actually free to choose your favorite surface, there is absolutely no reason why you would actually choose this paraboloid in this example.
这是我们的第一个例子，当然，如果你确实想选择你们喜欢的面，在这个例子里,不论选什么抛物面都没有关系。

This container is a paraboloid, but its shape does not need to be made as accurately as a rigid mirror.
ECONOMIST: Mirror, mirror

a geometric surface whose sections parallel to two coordinate planes are parabolic and whose sections parallel to the third plane are either elliptical or hyperbolic. Equations x/a y/b = 2cz