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- geological cycle of pollutants 污染物的地质大循环
- biogeochemical cycle of pollutants 污染物生物地球化学循环
- This is the cycle of economic booms and slumps. 这是经济繁荣和经济萧条的周期变化。
- He studied the cycle of events leading to the Great Depression. 他研究了导致大萧条的一系列事件。
- A cycle of the sun takes a year. 太阳循环周期需要一年。
- On the Business Cycle of the New Economy in U.S. 美国新经济周期研究。
- Is the cycle of economic booms and slumps. 这是经济繁荣和经济萧条的周期变化。
- A year constitutes a cycle of the seasons. 一年由四季的周期循环组成
- A single complete cycle of such motion. 旋转一圈
- Tests have shown high levels of pollutants in the water. 测试显示水中污染物质的含量很高。
- A single cycle of such a disturbance. 这种振动的一个周期
- Those nutrients counter the effect of pollutants in the air. 这些营养物质的影响柜台的污染物在空气中。
- One cycle of processing a body of data. 处理数据体的一个周期。参阅sortpass。
- geological cycle of substances 物质地质循环
- The life cycle of clay is limited. 它的使用周期是有限的。
- The life cycle of Sparganum is unknown. 无头蚴（绦虫）属的生活史尚不了解。
- What is the life cycle of Sarcoptes scabiei ? 什么是生命周期疥螨?
- How can they stop the unending cycle of violence? 他们如何才能结束这种无休止的暴力事件？
- C. A person studying the life cycle of fish. 研读鱼的生命循环的人。
- This cycle of suspicion and discord must end. 这种猜疑和不和谐的循环必须结束。
