《中英對照讀新聞》Los Angeles covers reservoir waters with ’’shade balls’’ 洛杉磯以遮陽球覆蓋水庫水面
◎魏國金
Los Angeles has completed a program of covering reservoirs with floating "shade balls" to protect water quality.
洛杉磯完成了用浮動「遮陽球」覆蓋水庫,以保護水質的計畫。
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.
市府人員本週將9600萬黑球的最後一批2萬顆球,倒入希馬爾的洛杉磯水庫。該座水庫位於市中心西北方25哩處。
The 4-inch-diameter plastic balls block sunlight from penetrating the 175-acre surface of the reservoir. That prevents chemical reactions that can cause algae blooms and other problems, allowing the Department of Water and Power to meet U.S. Environmental Protection Agency water-quality requirements.
這種直徑4吋的塑膠黑球可阻光透入175英畝的水庫表面。如此可預防恐導致水藻大量生長與其他問題的化學反應,讓洛杉磯水電局(DWP)的供水符合美國環境保護署對水質的要求。
The 36-cent balls also will help prevent evaporation of 300 million gallons of water annually from the 3.3 billion-gallon reservoir, the DWP said.
這種每顆36美分的球也有助於每年防止3億加侖的水,從儲水量33億加侖的水庫中蒸發,洛杉磯水電局說。
"In the midst of California’s historic drought, it takes bold ingenuity to maximize my goals for water conservation," Mayor Eric Garcetti said in a statement.
「正值加州處於歷史性乾旱之際,亟須大膽的獨創性才能極大化我的節水目標,」市長加西提聲明指出。
The city began using shade balls in 2008, and they now also cover the Upper Stone, Elysian and Ivanhoe reservoirs.
洛杉磯於2008年開始使用遮陽球,它們現在也覆蓋於上石、伊利森與艾芬豪水庫。
新聞辭典
shade:名詞,遮光物、濃淡深淺、(喻)形形色色。例句:The phrase has many shades of meaning.(這短語有許多層意思。)
evaporation:名詞,蒸發、揮發、脫水。例句:It is condensed by evaporation.(它是用脫水法濃縮的。)
ingenuity:名詞,獨創性、足智多謀、巧妙。例如,the ingenuity of a plan(計畫的巧妙)
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