手機APP下載

您現在的位置: 首頁 > 英語聽力 > 國外媒體資訊 > 經濟學人雙語版 > 經濟學人科技系列 > 正文

經濟學人:灌溉沙漠(2)

來源:經濟學人 編輯:Ceciliya ?  VIP免費外教試聽課 |  可可官方微信:ikekenet
 下載MP3到電腦  批量下載MP3和LRC到手機
加載中..

Both groups hope to get around these complications, but in different ways.

兩組人都希望避免這些問題,但使用的方式不同。
The researchers at Berkeley, led by Omar Yaghi, announced their results last year.
Omar Yaghi領導的伯克利的研究人員在去年宣布了他們的結果。
They propose to replace the zirconium-based metal-organic framework with one based on aluminium.
他們建議將鋯基金屬有機骨架替換為鋁基金屬有機骨架。
Not only is aluminium cheaper than zirconium, it is better at binding to and then releasing water, making the trap's operation smoother.
鋁不僅比鋯便宜,而且更容易與水結合并釋放水,使捕集器的操作更加順暢。
On top of this, Dr Yaghi has found that by mixing graphite into the powder from which the framework is compounded,
最重要的是,Yaghi博士發現,通過將石墨與粉末混合制成框架,
in order to make it black, and therefore heat-absorbing, he can eliminate the need for copper foam.
使其變黑,從而達到吸收熱量的目的,他可以消除對泡沫銅的需求。
In Connecticut, meanwhile, Steven Suib and his colleagues,
與此同時,在康涅狄格州,Steven Suib和他的同事
who have just reported their result in Environmental Science and Technology Letters, propose getting rid of both framework and foam,
在《Environmental Science and Technology Letters》中發表了自己的結果,他們建議拋棄框架和泡沫,

灌溉沙漠(2).jpg

and replacing them with birnessite, a type of manganese dioxide. Birnessite is abundant in nature.

用將它們替換為水鈉錳礦—一種二氧化錳。水鈉錳礦資源豐富。
It is also easy to make artificially. It is therefore cheap.
人工制作也很容易。因此,它很便宜。
Like metal-organic frameworks, birnessite is riddled with tiny holes that allow air to move around inside it, to maximise adsorption.
和金屬-有機骨架一樣,水鈉錳礦布滿了小孔,空氣可以在里面流動,最大限度地吸附。
And it, too, is black and therefore heat-absorbing.
它也是黑色的,因此可以吸收熱量。
Both proposals work. Tested in desertlike conditions in a laboratory—and in Dr Yaghi's case in an actual desert, too—
兩種建議都可行。在類似沙漠的條件下在實驗室里測試—Yaghi博士是在真正的沙漠中進行測試的—
they absorb and regurgitate reasonable fractions of their weight of water every day. They are nothing like as productive as desalination plants,
它們每天吸收和反芻相當比例的水。它們完全不像海水淡化廠那樣高產,
and so would have to be built at large scale to generate water in commercially useful quantities.
因此必須大規模建造才能產生商業上有用的水量。
But one thing deserts do have is lots of cheap land. If either or both of these inventions can be manufactured at scale,
但是沙漠里有很多便宜的土地。如果這兩項發明中的一項或兩項都能大規模生產出來,
then the deserts may bloom—if not with plants, at least with water-collection farms.
那么沙漠就有可能蓬勃發展—如果不是用工廠,至少是用集水的農場。

譯文由可可原創,僅供學習交流使用,未經許可請勿轉載。

重點單詞   查看全部解釋    
discrimination [di.skrimi'neiʃən]

想一想再看

n. 歧視,辨別力,識別

 
eliminate [i'limineit]

想一想再看

v. 除去,剔除; 忽略

聯想記憶
announced [ə'naunst]

想一想再看

宣布的

 
reasonable ['ri:znəbl]

想一想再看

adj. 合理的,適度的,通情達理的

 
absorb [əb'sɔ:b]

想一想再看

vt. 吸納,吸引 ... 的注意,吞并

聯想記憶
replace [ri(:)'pleis]

想一想再看

vt. 取代,更換,將物品放回原處

 
trap [træp]

想一想再看

n. 圈套,陷阱,困境,雙輪輕便馬車
v. 設

 
scale [skeil]

想一想再看

n. 鱗,刻度,衡量,數值范圍
v. 依比例決

 
generate ['dʒenə.reit]

想一想再看

vt. 產生,發生,引起

聯想記憶
abundant [ə'bʌndənt]

想一想再看

adj. 豐富的,充裕的

聯想記憶
?

關鍵字: 經濟學人 灌溉沙漠

發布評論我來說2句

    最新文章

    可可英語官方微信(微信號:ikekenet)

    每天向大家推送短小精悍的英語學習資料.

    添加方式1.掃描上方可可官方微信二維碼。
    添加方式2.搜索微信號ikekenet添加即可。
    东京热影院,东京热免费,东京热视频