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- Through explicating the key irrigation water period definition and analyzing the irrigation test data, the paper advances maize key irrigation period in Jilin province west part. 通过对旱作物关键灌水期定义的解释，以及对灌溉试验资料的分析，提出了吉林省西部玉米作物的关键灌水期，为高效、经济灌溉提供了决策依据。
- The result is of importance significance for the reliability of water supply during irrigation periods and the control methods of reservoir operation based on the concept of pollutant sluicing before water supply. 对以后农业灌溉期水库供水安全保障措施实施以及“先冲污后供水”的水库供水运行调度方案制订，具有重要的指导意义。
- We used the money to set up an irrigation project. 我们把钱用在兴建灌溉工程上了。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- They are digging irrigation ditches. 他们在挖灌溉渠。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- Irrigation is needed to make crops grow in dry regions. 干旱地区需要灌溉才能使作物生长。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- Irrigation is needed to make crops grow in dry area. 要使庄稼在乾旱地区生长就需灌溉。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史？
- Irrigation is needed to make crops grow in dry areas. 要使庄稼在乾旱地区生长就需灌溉。
- Water is channelled through a series of irrigation canals. 把水引入一系列灌溉渠中。
- Research for expended generating benefit in the connection reservoirs during irrigation period 串联水库灌溉期增加发电效益的研究
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的？
- Chaucer wrote in the late mediaeval period. 乔叟写作的时代是中世纪末。
