The seepage of the dam is a common and prominent problem in many small-scale reservoirs, and it has brought bad influence on the normal functions of the reservoirs to a certain degree.
大坝渗漏是众多小型水库普遍存在且较为突出的问题，它已不同程度地影响到水库工程的正常、安全运行。
Along with a great deal of oil pollutant impacting into Marine, petroleum pollution has brought about a long-term and bad influence to ocean environment and ecosystem system.
随着石油等污染物大量的排入海洋，对海洋环境和海岸生态系统造成长期及恶劣的影响。
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