Electricity Lights Up the World's Columbian Exposition: October 1893.
1893年10月电力点亮世博会。
Fluorescent lights use electricity to excite mercury vapor. This produces ultraviolet light that causes a phosphor coating inside the bulb to glow.
荧光灯用电激发水银蒸气。这会生成紫外线光而使得镀在灯管内壁上的磷涂层发光.
Because electricity is in short supply, there are hardly any lights at all — a couple of bulbs here and there, and the headlights of passing buses.
因为电力的短缺,基本上看不到灯光——除了零星的几点外,就只有路上行驶公交车的头灯。
Right now, it's impossible now to know how much electricity our lights and geothermal system will use at Sheep Dog.
眼下,我们还不可能知道在牧羊犬这个地方要用多少电来照明,要用多大规模的地热系统来取暖。
There's no electricity beyond that provided by one old solar panel that powers two dim lights for a few hours a day.
这里没有电,只有一个旧太阳能电池板,每天提供几个小时微弱的灯光。
Now balanced precariously atop their tin roof, a lone solar panel provides enough electricity to charge the phone and run four bright overhead lights with switches.
现在,一晃一晃固定在露托家铁皮屋顶上的,是一架独立式太阳能电池板,可以为手机提供足够的电力,并点亮了4只带开关的吊灯。
The wind turbine he used to generate electricity was damaged during a storm three years ago and still hasn't been repaired, so he USES a solar panel to power his computer and lights.
发电用的风力涡轮机三年前就在一次风暴中损坏了,至今没有得到修复。所以他用太阳能帆板来给他的电脑和照明灯供电。
Electricity is being rationed at the hotel, with lights out at 1 a.m., a little later than summer camp.
现在饭店还是有电力供应的,不过凌晨1点的时候就要断了,比夏令营断电时间稍晚些。
For instance, encourage the kids to look for ways to save money - by borrowing DVDs from the public library instead of renting them, or saving electricity by turning out lights.
例如,鼓励孩子寻求省钱之道——从公共图书馆借dvd而不是花钱去租,或者随手关灯以节约用电。
Switch the lights off. Stop using fossil fuels to make electricity.
比如关掉电灯、停止使用化石燃料来发电、选择高效能的汽车、不乘坐飞机。
As a local energy official, Ms Rousseff kept the lights on after a drought in 2001 led to electricity rationing.
身为地方的能源厅长,Dilma Rousseff在2001年干旱造成轮流限电之后仍保持开灯。
That was the days before electricity. Now our sky is lit from the many city lights, making it difficult to see stars.
那是早在电力被发明之前的事。如今城市的灯光照亮了夜空,我们更不容易看到星星了。
Solar panels will generate enough electricity for the satellite communication and navigation system and for lights.
太阳能板能产生足够的电力维持卫星通讯,导航系统,以及照明灯。
On a sunny summer day, the two children inside had to keep the lights on — which drives up the electricity bill, even if the family is using energy-saving bulbs.
即使家庭使用了节能灯泡,在一个阳光明媚夏日的一天家里的两个孩子仍开着灯——增加了电力账单。
The electrical system supplies electricity for the ignition, horn, lights, heater, and starter.
电系统为点火,喇叭,灯光,发热器和起动器提供电。
Tell the boy to switch off all the lights as he leaves the room in order to save electricity.
告诉孩子在离开房间时关掉所有的灯,以节约用电。
Instead of turning off the lights for 30 minutes once a year, what is needed is a shift in thinking that views saving electricity with an almost religious fervor.
我们需要的是以虔诚的热情转变节约电的观点,而不是一年关30分钟的灯。
Portable Lights have the potential to transform the lives of people without electricity. Around the world, says project leader Sheila Kennedy.
项目负责人希拉·肯尼迪称,移动光源有可能改变全世界用不上电的人们的生活。
They are for decorative purposes only as the shelter has no electricity. In winter, fairy lights, powered by give it a festive glow.
但由于车站没有通电,这些电器只是起到装饰的作用。在冬季,车站内的装饰彩灯则由一台发电机供电,为车站增添了节日的气氛。
The starter gets its electricity from the storage battery which does all the electric jobs in your car: starts it runs the radio the heater the windshield wiper the horn and the lights.
蓄电池为汽车提供电流,用以打火,使收音机、取暖器、雨刷、喇叭以及车灯工作。
Moreover, the electricity for lighting and the lights are provided completely.
并且照明用电、灯具齐全。
If everyone boiled only the water they needed every time they used the kettle, we could save enough electricity in a year to power the UK's street lights for nearly seven months.
如果每个人都只用水壶煮他们需要的水,我们在一年里节省的电力足够点亮全英国的路灯将近七个月。
One day during rehearsals the electricity shut off and all the lights went out, but the musicians just kept going.
有一天,排练时停电了,所有的灯都灭了,但音乐家们并没有停下来。
One day during rehearsals the electricity shut off and all the lights went out, but the musicians just kept going.
有一天,排练时停电了,所有的灯都灭了,但音乐家们并没有停下来。
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