送交者: Yush 于 2005-8-28, 17:22:04:
回答: IS there any body English good enough to write a letter 由 xj 于 2005-8-28, 12:50:51:
新华社把防渗膜翻译成plastic membrane（http://news.google.com/news?hl=en&ned=us&ie=UTF-8&q=yuanmingyuan）
随便一搜索，找到关于防渗膜的英文网页如下：
http://aquanic.org/publicat/usda_rac/efs/srac/105fs.pdf
Properly installed, a liner is 100 percent effective in stopping seepage. For soils with high gypsum content, a liner is the only option. Because of the relatively high cost, liners have been used primarily for ornamental ponds, water storage, fish hatcheries, and research facilities. However, advances in liner technology achieved through their wide-spread use for landfills, hazardous waste, and water storage facilities have caused prices to fall.
Modern plastics are environmentally safe, withstand freezing, and are UV-stabilizedfor long-term exposure to the sun. With care, a pond liner can last 20to 25 years.
Liners can be made from high-density polyethylene (HDPE) or low-density polyethylene(LDPE). LDPE is more flexible and is usedwhere there is more shifting or movement of the soil, while HDPE is more resistant to chemicals. Polyethylene is both economical and durable and can be fiber-reinforced for greater strength.
http://taurisano.tripod.com/leaks.htm
The best material to use is a woven geotextile -- underlay fabric. You can find it at most reputable water garden centers
http://www.bagelhole.org/article.php/Water/202/
Plastic or rubber liners are often used to seal leaky ponds.