paraboloid

基本解釋

It is this guy.If you continue to follow your normal vector, see, they are actually pointing up and into the paraboloid.
就是這它了，如果你繼續(xù)跟著法向量看，會(huì)看到它們實(shí)際上，指向上并且指向拋物面里。
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.
經(jīng)過(guò)10年的研究，他們?cè)诮衲昴瓿踝C明了他們以及其他人已經(jīng)折了好幾年的一個(gè)叫雙曲線(xiàn)拋物面的曲面實(shí)際上并不存在。
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.
這是我們的第一個(gè)例子，當(dāng)然，如果你確實(shí)想選擇你們喜歡的面，在這個(gè)例子里,不論選什么拋物面都沒(méi)有關(guān)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