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
It's cut short and has stirrups that loop over the feet, creating a stretch that stresses the legs and pulls slightly at the shoulders.
这是种剪短设计，有一个马镫形支架包裹着脚部，并延伸至肩部拉紧。
3
Generally speaking you want as short a feedback loop as possible, so you can adapt your process quickly.