2.How to keep long-term depurative water quality and form a hygeian hydrophily ecosystem in manmade lake is a key topic we concerned.
建设良好水生生态系统,使人工湖长期保持水体清洁是人们重要课题。
3.The Yakou beach on the right side of the typhoon track was rather stable, with only a slight silting in the belt of middle tide besides erodedm manmade dunes in the landward backshore.