The short range of the induction-loop antenna in the lens means the external antenna has to be very close to the eye: taped around the eye socket, in fact.
眼镜内感应圈天线短意味着外部天线离眼睛一定很近：实际上就是黏在眼眶周围。
2
A mobile phone, souped-up with such an antenna, can talk to a network tower that is dozens of kilometres beyond its normal range (about 5km, or 3 miles).
一部手机，若以这种天线增强过，就可以同广播塔通话，比其正常距离(约五千米，或3英里)远几万米。
3
The antenna is capable of acquiring the range and angular information of all obstacles in its field-of-view simultaneously without using a scanning or switching antenna.