1. According to the different altitude the models were named respectively water circle, flooded circle, waterlogged circle, dry field circle and courtyard circle. The models' compre… 选择其中广泛分布的典型碟形洼地，根据其高程不同按水体圈、涝地圈、渍地圈、旱地圈和庭院圈分别进行了高效生态农业模式的开发，取得了较好的综合效益。
2. The traffic investigation is the base of traffic planning, the construction of traffic facilities, the traffic control and management as well as the research of traffic flow. 交通调查是进行交通规划、交通设施建设、交通控制与管理以及交通流研究的基础，也为科学的决策提供依据。
3. The spot erosion of pinion is between the dividing circle and the root circle. The spot erosion of gear is between the dividing circle and addendum circle. 小齿轮点蚀发生在分度圆与齿根圆之间，大齿轮点蚀发生在分度圆与齿顶圆之间。
4. Traffic Police Detachment of point and Tanggu duty traffic police and traffic to persuade members of full induction of maintaining the traffic. 交警塘沽支队各点位执勤交警和交通劝导员全员上岗，坚守岗位疏导交通。
5. Traffic Police Detachment of point and Tanggu duty traffic police and traffic to persuade members of full induction of maintaining the traffic. 交警塘沽支队各点位执勤交警和交通劝导员全员上岗，坚守岗位疏导交通。
网络释义
a vicious circle argue in a circle 循环论证;
a vicious circle a vicious spiral vicious circle 恶性循环;
