The paper reviews the stream pollution problem caused by sediments at home and abroad, and summarizes the research progress in this field.
对目前国内外泥沙引起的河流污染问题进行了概述，并总结了国内外在此领域研究的进展。
We are taking steps to prevent stream and air pollution.
我们正采取措施防止河流和空气污染。
Landfill should be avoided to minimise disturbance of habitat, sediment pollution, alteration to stream flow dynamics and effect on habitat.
在垃圾处理的过程中应该尽量避免打搅到动植物的天然栖息地，避免产生沉淀物的污染，最小化对水流与天然栖息地的污染。
The pollutants are mainly from point pollution source of upper stream of Zhuozhang river.
污染源主要来自于河段上游点源污染。
Aim To study the main stream of the Han Danjiang River Basin of water pollution control.
目的对汉丹江流域干流的水体进行研究，以便加强水污染的控制。
Efficient removal and recovery of the soluble material from cooked pulp is important to minimize chemical makeup, requirement, bleaching demand, and pollution load in the mill effluent stream.
从蒸煮所得的纸浆中有效的提取并回收溶解物质，对最大限度的减少补充化学药剂、减少漂白剂的需要量、降低工厂废水的排污负荷，均具有重大的意义。
Efficient removal and recovery of the soluble material from cooked pulp is important to minimize chemical makeup, requirement, bleaching demand, and pollution load in the mill effluent stream.
从蒸煮所得的纸浆中有效的提取并回收溶解物质，对最大限度的减少补充化学药剂、减少漂白剂的需要量、降低工厂废水的排污负荷，均具有重大的意义。
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