33% of dams and reservoirs turn obsolete_科学技术

33% of dams and reservoirs turn obsolete

文章来源：文章作者：发布时间：2007-03-26 01:05 字体： [大中小]　进入论坛

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Chinanews, Beijing, Mar¹. 24 – Zhu Erming, honorary chairman of Chinese Hydraulic² Engineering Society, said on Thursday that China has 85 thousand dams and reservoirs, some 33% of them having turned obsolete³, especially medium and small where problem is even more serious.

He said that China has done a lot to deal with water quality since the 1950s. But he warned at the same time that China still have more to do to provide safe and high-quality water.

Zhu also points out that some of these dams are located in transportation hubs or densely⁴ populated areas, which may cause grave danger in the future.

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收听单词发音

1 mar
vt.破坏，毁坏，弄糟
参考例句：
It was not the custom for elderly people to mar the picnics with their presence.大人们照例不参加这样的野餐以免扫兴。 Such a marriage might mar your career.这样的婚姻说不定会毁了你的一生。

2 hydraulic
adj.水力的；水压的，液压的；水力学的
参考例句：
The boat has no fewer than five hydraulic pumps.这艘船配有不少于5个液压泵。 A group of apprentics were operating the hydraulic press.一群学徒正在开动水压机。

3 obsolete
adj.已废弃的，过时的
参考例句：
These goods are obsolete and will not fetch much on the market.这些货品过时了，在市场上卖不了高价。 They tried to hammer obsolete ideas into the young people's heads.他们竭力把陈旧思想灌输给青年。

4 densely
ad.密集地；浓厚地
参考例句：
A grove of trees shadowed the house densely. 树丛把这幢房子遮蔽得很密实。 We passed through miles of densely wooded country. 我们穿过好几英里茂密的林地。

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