抛物面

• Spherical aberration analysis of refraction imaging for paraboloid and sphere
  抛物面与球面折射成像的球差分析
• They have magnetrons , microwave - generator s , amplifiers and integrated systems
  还有抛物面天线改装的传送器。
• Confocal paraboloidal coordinates
  共焦抛物面坐标
• Paraboloid hyperholoid mirror
  抛物面双曲面镜
• Off - axis parabolic mirror
  离轴抛物面反射镜
• Representation of parabo
  曲面表示抛物面
• Cut paraboloid reflector
  截抛物面反射器
• Food cooks quickly in parabolic ovens . however , these cookers are hard to make
  抛物面炉烤食品快。但是,抛物面炉很难做。
• In other words , a big dish takes a very close look at a tiny sliver of sky
  换句话说，一个大抛物面能仔细观察一小块天空。
• Pb oven also cause burns and eye injuries if you are not used correctly
  抛物面形炉灶同时容易造成灼伤和眼睛灼伤如果你使用不当。