“环面”造句

环面可由矩形把其两对对边分别重叠起来而得到.
A torus can be obtained from a rectangle by identifying opposite sides.

所以就拓扑学而言, 球和环面是不同的东西.
Topologically, then, a sphere and a torus are distinct entities.

平面包络环面蜗轮副具有优良的啮合性能,它是一种具有广阔应用前景的传动形式.
Worm pairs of planar envelope hourglass have many advanced meshing properties and potential applications.

• #环面