In effect, the Gregorian dome transforms Arecibo's spherical dish into the equivalent of a parabolic dish. 效果上罗马穹顶将阿雷西博的球形碟面变成了抛物面形碟面。
The Gregorian dome, due to its unique geometrical shape, focuses the signal reflected by Arecibo spherical dish one a single point inside the dome. 罗马穹顶由于它独特的几何外形,将阿雷西博球形碟面反射来的信号聚焦到它内部的一个点上。
One factor is that unlike the old line feed antenna, which was hanging by itself, exposed to the tropical elements, the multi-beam receiver is located inside the distinctive-looking Gregorian dome. 与老的线性反馈天线暴直接露在热带环境中不同,多通道接收器安放在富有罗马特色的穹顶中。