This is the paraboloidal mirror at the bottom of the tube.
是位于镜筒底部的一块抛物面镜。
The primary mirror. This is the paraboloidal mirror at the bottom of the tube.
是位于 镜筒底部的一块抛物面 镜。
A corrugated conical horn antenna with high-gain and low-sidelobe feeding the paraboloidal reflector antenna to reduce the cost is designed.
文中设计了一种加扼流环的圆锥喇叭来作为抛物面的馈源，实现低成本的高增益、低旁瓣的收发天线系统。
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