英语听力论坛's Archiver

xln1120 发表于 2015-8-17 17:21

洛杉矶向露天水库投放遮阳球保护水质

[font=Verdana, Arial, Tahoma][size=14px][b]The city has completed a program of covering open-air reservoirs with floating "shade balls" to protect water quality.[/b][/size][/font]

[font=Verdana, Arial, Tahoma][size=14px][b]为了保护水质,洛杉矶市向露天水库投放了9600万个“遮阳球”,这些球浮在水面上,水库表面已被遮盖。目前该项目已全部完成。[/b][/size][/font]
[font=Verdana, Arial, Tahoma][size=14px][img=576,266]http://www.enread.com/upimg/allimg/150817/1_150817075108_1.jpg[/img][/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]City officials this week dumped the last 20,000 of 96 million black balls into the Los Angeles Reservoir in Sylmar, 25 miles northwest of downtown. The 4-inch-diameter plastic balls block [url=http://www.enread.com/news/life/101735.html]sunlight[/url] from [b]penetrating[/b] the 175-acre surface of the reservoir.[/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]That prevents chemical reactions that can cause [b]algae[/b] blooms and other problems, allowing the Department of Water and Power (DWP) to meet U.S. Environmental Protection Agency water-quality requirements.[/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]They have the added [b]perk[/b] of aiding with the [b]ravages[/b] of the drought, and are expected to keep about 300 million gallons [b]annually[/b] from evaporating.[/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]"In the midst of California's historic [url=http://www.enread.com/news/life/101735.html]drought[/url], it takes bold [b]ingenuity[/b] to maximize my goals for water conservation," Mayor Eric Garcetti said in a statement, noting that the effort is "[b]emblematic[/b] of the kind of the creative thinking we need to meet those challenges."[/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]The 36-cent balls also will help prevent [b]evaporation[/b] of 300 million gallons of water annually from the 3.3 billion-gallon reservoir, the DWP said.[/size][/font]

[font=Verdana, Arial, Tahoma][size=14px]The city began using shade balls in 2008.[/size][/font]
[font=Verdana, Arial, Tahoma][font=Verdana, Arial, Tahoma][size=12px][font=simsun][size=13.63636302947998px][font=Verdana, Arial, Tahoma][size=12px][font=simsun]更多[/font][/size][/font][/size][/font][font=Verdana, Arial, Tahoma][font=Verdana, Arial, Tahoma][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=宋体, Verdana, Arial, Helvetica, sans-serif][size=24px][color=#ED1C24][b]英语新[/b][/color][/size][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/size][/font][font=Verdana, Arial, Tahoma][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][font=simsun][color=#ED1C24][size=24px][b]闻[/b][/size][/color][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font][/font]

页: [1]

Powered by Discuz! Archiver 7.2  © 2001-2009 Comsenz Inc.