bourn；brook；riverlet;rivulet；streamlet是什么意思

网络释义

用法例句

The residues and distribution of organochlorine pesticides in sediments from different streams were determined and the influence of soil character on organochlorine pesticides residues in sediments were studied.

2004年春,以南京市西南部4条通入长江的小河流为试区,采集不同断面表层沉积物和水样,以及相应流域内农田土壤样品,对所有样品中有机氯农药的残留及其分布状况进行研究,并讨论了农田土壤有机氯农药残留量和理化性质对河流表层沉积物中有机氯残留量的影响。

The middle and small creeks in suburban Shanghai were under heavy eutropic condition, with high loadings of nitrogen, phosphorus and organic pollutants.

①上海市郊中小河流有很高的氮磷和有机负荷 ,其表层水凯氏氮、总磷和CODCr指标均数倍于V类水的最大允许值 。