| 释义 |
klein bottle
\ˈklīn-\ noun
Usage: usually capitalized K
Etymology: after Felix Klein died 1925 German mathematician and inventor
: a surface that is closed in such a way that it is possible to pass from a point on one side to the corresponding point on the opposite side without passing through the surface and that is formed by passing the narrow end of a tapered tube through the side of the tube and flaring this end out to join the other end |