It calls for Xcel Energy to close four coal-fired units in the region, switch another to natural gas and build a gas-fired plant to help meet federal clean-air standards.

要求埃克·西尔能源公司关掉这个地区的四个燃煤发电机组，把另一个燃煤机组更换为燃气机组，并新建一个燃气发电厂，以符合联邦的清洁能源标准。

youdao

However, before ending a modeling session you should switch to the advanced editing mode to find and clean up dangling inputs and outputs.

不过，在结束某个建模会话之前，您应当切换到高级编辑模式，以查找和清除悬空输入和输出。

youdao

Some are looking to clean their air of conventional pollutants, which could encourage some companies to switch to low - or no-carbon alternatives.

有些国家准备将传统污染物从空气中清除出去，这将鼓励一些公司转移到低碳或无碳替代方案上来。

youdao

... A 'green power' program regularly invites customers to pay $4 to $10 extra per month to switch to clean energy.

VOA: standard.2010.03.23

The Maldivian leader wants countries like his to embrace green technology, switch to clean energy, and show the way to those who are opposed to change.

VOA: standard.2009.11.09

Environmental groups like Greenpeace and Friends of the Earth would like to see a switch to renewable and clean sources of energy such as solar, wind and hydro-electric power.

BBC: Impact of global warming may be severe and wide-ranging

These types of reversal days give traders a cue to clean up some excess longs and to switch gears a bit.

FORBES: Gold And Silver Shine As Stocks Go Soft

Regardless of how much success Microsoft has in converting Gmail loyalists, though, a lot more people are about to become acquainted with Outlook's clean UI: the company has said it plans to switch Hotmail users over to the Outlook interface by summertime.

ENGADGET