等距的

The new type of rotary compressor has two key parts, an outer rotor and an inner one which employs isometric curve of trochoid as its profile.

从理论上分析了一种新型内、结构回式压缩机,其内型线由短幅摆线的内等距线构成。

These observations allow one to formalize the definition of reflection: a reflection is an involutive isometry of an Euclidean space whose set of fixed points is an affine subspace of codimension 1.

这些观察允许们形式化反射的定义: 反射是欧几里得空间的对合等距同构，它的不动点集合是为 1 的仿射空间。