A radio telescope's beam depends on the diameter of its dish; the bigger the dish, the narrower the beam.
A radio telescope's beam depends on the diameter of its dish; the bigger the dish, the narrower the beam.
射电望远镜的光束依赖于抛物面直径的大小：抛物面越大，光束越窄。
A radio telescope's beam depends on the diameter of its dish; the bigger the dish, the narrower the beam.
射电望远镜的光束依赖于抛物面直径的大小：抛物面越大，光束越窄。