At night, when demand is lower, these power stations can be switched off, which means that each unit of electricity has a lower carbon footprint.
到了晚上，需求降低，这些发电站就会关闭。这意味着产生每单位电能所带来的碳足迹降低了。
Stations like these including KTRU at Rice University in Houston are known as public broadcasters.
象这类电台包括在休斯敦的稻穗大学以公开播报员闻名的KTRU台。
The company changed its mind after details of these talks leaked. Shortly afterwards it raised prices at its petrol stations in Argentina.
Shell在这些谈判细节泄漏之后改变心意，不久后，该公司提高在阿根廷加油站的汽油售价。
"These aren't online versions of the TV stations. These Web sites are local Internet portals," says Ron Berryman, senior vice-president and general manager of the TV stations group at FIM.
“这些网站不仅仅是电视台的网络版，而是地方互联网门户”FIM高级副总裁、主管电视台业务的总经理RonBerryman向我们介绍。
On-site production using enzymes at filling stations, or even in people's homes, could get around these issues.
在加油站现场通过酶制作氢气，或在用户家中自己生产，可以很好地解决这个问题。
But now with passengers too going through checks, the new measures have caused serious holdup at the entrance of these three stations.
但现在乘客本人也必须过安检门，这一新措施导致这三个车站出现了严重的拥堵。
What is needed is greater safety at these power stations.
这些电站更加需要注意安全。
These days we can stroll around on two feet at will. Our hands are free to do all sorts of things, from building space stations to building radio stations.
这些天我们用双脚想去哪里就去哪里，我们的双手自由地做着各种各样的事，从建造太空站到建造广播站。
I have many friends in Urumqi, but I haven't heard about these reports of large Numbers of people at train stations and airports trying to leave.
我有很多朋友在乌鲁木齐，但我没听说过那些报道说的很多人聚集在火车站和机场要离开的事。
A new station model which has both the advantages of these stations at same time has been derived by the author.
本文分析了几种不的折返站型的优缺点，进而导出兼有几种站型优点的新站型。
A new station model which has both the advantages of these stations at same time has been derived by the author.
本文分析了几种不的折返站型的优缺点，进而导出兼有几种站型优点的新站型。
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