他胸前留着飘逸的白胡子，戴着一副没有镜片的金框眼镜。
A flowing white beard covered his chest and he wore gold-rimmed spectacles from which the glasses had dropped out.
这款名为“远程侦察兵”的装置需在计算机的辅助下工作，外形像一副眼镜，但没有镜片，将使用一种成像设备，几乎实时地把翻译出来的文字直接投射到配戴者的视网膜上。
Shaped like a pair of eye-glasses, but without the lenses, the computer-assisted Tele Scouter would use an imaging device to project almost real-time translations directly onto the user's retina.
这款需在计算机的辅助下工作的“TeleScouter”外形像一幅眼镜，但没有镜片，需使用一种成像设备，将几乎是实时翻译出来的文字投射到使用者的视网膜（显示屏）上。
Shaped like a pair of eye-glasses, but without the lenses, the computer-assisted Tele Scouter would use an imaging device to project almost real-time translations directly onto the user's retina.
有些人会带很多配件，比如额外的镜片，但对于这门课来说真的没有必要。
Some people bring along a lot of accessories like extra lenses, but there's really no need for this class.
伽利略并没有发明望远镜，但在1609年听到有人制造了这种光学仪器后，他很快用管风琴管和眼镜镜片制造了自己的望远镜。
Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.
然而，使用这项技术有一个问题：电极并没有密封于镜片内，而是暴露在外。
But there is a problem with using amperometric sensing: the electrodes are not sealed within the lens, and therefore are exposed.
尽管没有ED镜片，在大多数情况下，色彩的歧变是可以忽略的。
Despite the lack of ED glass, colour fringing is negligible in most situations.
这个好些，我想把镜片也换上，可惜没有带视力记录来。
They're much better. I want to change the lenses too, but I haven't brought my prescription with me.
其中之一就是1993年在轨道上修复哈勃天文望远镜；如果没有宇航员安装新镜片，这个巨大昂贵的望远镜卫星就是一堆废铁。
One was the 1993 in-orbit repair of the Hubble Space Telescope; without astronauts to fit new lenses, the enormously expensive satellite would have been a flop.
儿童应该使用真正的太阳镜，而非玩具太阳镜。玩具眼镜用的聚碳酸酯(塑胶)镜片没有紫外线防护作用。
Children should wear real sunglasses (not toy sunglasses!) that indicate the UV protection level. Polycarbonate lenses are the most shatter-resistant.
他的镜片反光，所以我看不到镜片后面有什么人性的东西，所以没有交流的可能。
His spectacles caught the light so that you could see nothing human behind them. There was no possibility of communication.
他的镜片反光，所以我看不到镜片后面有什么人性的东西，所以没有交流的可能。
His spectacles caught the light so that you could see nothing human behind them. There was no possibility of communication.
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