例文
- If the section is perpendicular to a " bisectrix " ( see Crystallography ) a black cross is seen which on rotation opens out to form two hyperbolas, the apices of which are turned towards one another.
- :For each pair of vertices ( A, B ), the bisectrix hyperplane divides hyperspace into the points closer to A and closer to B . Therefore there is a bijection between the permutations of the vertices and the chunks into which the hyperplanes partition space.
