抛物面

拋物面

pāowùmiàn

noun #59,523

Meanings

1 paraboloid (geometry)
2 parabolic surface

Characters

Examples

卫星接收器的形状是抛物面。

Wèixīng jiēshōu qì de xíngzhuàng shì pāowùmiàn.

Satellite receivers have a parabolic shape.

抛物面天线能聚焦电磁波。

Pāowùmiàn tiānxiàn néng jùjiāo diàncí bō.

Parabolic antennas can focus electromagnetic waves.

Tips

memory

抛物 (pāowù) literally 'thrown object' — the parabola was named after the path of a thrown projectile. Add 面 (miàn, 'surface') to get the 3D paraboloid. Related: 抛物线 (pāowùxiàn) parabola (the curve).

Stroke Order

抛 pāo

物 wù

面 miàn