This means that the SETI receiver was perched permanently above the Arecibo dish at the base of the aging line feedantenna.
也就是说SETI的接收器永久的占据着阿雷西博碟型天线上老化的线性馈源的底部。
2
One factor is that unlike the old line feedantenna, 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。
3
A sphere, in contrast, concentrates its beam to a line - which is why a "line feed" antenna was originally used at Arecibo.