Now, back then, there was no artificial lighting.

那时，没有人工照明。

Sunflower plants' response to light was also tested under artificial lighting conditions.

研究人员也对向日葵植物在人工照明条件下的反应进行了测试。

Past studies involving artificial lighting used satellite images of the Earth at night.

过去有关人工照明的研究使用的是地球夜间的卫星图像。

The environment also could be changed by adding special nutrient mixtures or artificial lighting.

环境也可以通过添加特殊的营养混合物或人工照明来改变。

The piece uses natural and artificial lighting to darken parts of the tree while shining light on others.

这件作品使用自然光和人工照明照亮树的一部分，同时让另一部分变暗。

It found that man-made, or artificial, lighting is making the night sky about 10 percent brighter each year.

研究发现，人造照明每年使夜空变亮10%左右。

The reasoning goes that it encourages people to say out later in the summer and thus use less artificial lighting.

因为夏令时鼓励人们夏天在户外待得更晚，这样就能少用电灯。

Try to imagine modern life without artificial lighting.

试着想象一下没有人工照明的现代生活。

In indoor vertical farms, natural sunlight is replaced with artificial lighting like LEDs.

在室内垂直农场中，自然阳光被 LED 等人工照明所取代。

This strategy promotes energy efficiency and reduces the need for artificial lighting during the day.

这种策略提高了能源效率，减少了白天对人工照明的需求。

When it comes to artificial lighting, warm colors are the best.

谈到人工照明，暖色调是最好的。

Well, you know, spending too much time indoors with all that artificial lighting can do that to you.

好吧，你知道，在室内花费太多时间使用所有人工照明会对你造成影响。

Well, you know, spending too much time indoors with all that artificial lighting can do that to you. Your body loses track of whether it's day or night.

在人工照明的室内待太久就会这样，无论白昼你的身体失去了平衡。

However, nowadays this artificial lighting everywhere, in our rooms and on our screens, on our phones, we are constantly bombarding our body with white light which prevents the production of melatonin.

但是如今人造灯光处处可见，我们的房间里和手机的荧幕上都有人造灯光，我们的身体不断地浸浴在白光之下，这样会避免退黑激素的产生。

But when the summer sun goes down in the evening, and you are sitting outside at home, you may not be able to see many flowers in the yard without artificial lighting.

但当夏天的太阳在傍晚落山时，你坐在家外面，如果没有人工照明，你可能看不到院子里的许多花。

What he really wanted to know was—like humans kept awake by the light of their cell phones—would artificial lighting keep mosquitoes up and biting deep into the night?

他真正想知道的是——就像人类被手机的光保持清醒一样——人工照明是否会让蚊子在夜里不停地叮咬？

Internally, the tower features a 1.2-megawatt cogen system that contributes to heating and cooling requirements; while floor-to-ceiling windows and column-free floor plates maximise natural light, reducing the extent of artificial lighting needed during the day.

在内部，塔楼具有 1.2 兆瓦的热电系统，有助于满足供暖和制冷需求，而落地窗和无柱地板最大限度地利用自然光，减少白天所需的人工照明。

Cullins said that rooms with insufficient lighting could make certain tasks hard to accomplish, while rooms with bright artificial lighting that can't be dimmed can make sleeping and relaxing difficult.

Cullins 说， 房间照明不足可能会使某些任务难以完成，而房间内的明亮人工照明无法调暗会使睡眠和放松变得困难。