So, we created a way to filter out the unwanted light, allowing us to read the quantum signal much better.

于是我们想了个方法过滤掉其他光，这样我们可以更好接收量子光。

youdao

Forty percent of that powers old-fashioned incandescent light bulbs—a 19th-century technology that wastes most of the power it consumes on unwanted heat.

其中40%的电能用于老式白炽灯——这是19世纪的一项技术，它所消耗的大部分电能都浪费在制造多余的热量上。

youdao

These tiny devices are capable of detecting very weak pulses of light and amplifying them with unprecedented bandwidth and minimal addition of unwanted noise.

这些微型设备具备探测非常微弱的光脉冲、并且以前所未有的带宽将它们放大、同时使额外产生的不必要的噪声最小化的能力。

youdao

They are too bright, too sensitive and often badly angled, sending unwanted light into neighbouring windows and the night sky, say critics.

BBC: Light pollution: Is there a solution?