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- The key time of control the pest is the period of overwintered nymphs before flowering and the occurrence period of the ... 开花期-幼果期应以保护利用天敌为主,尽量避免喷洒化学农药。
- On November 8, 1997, a large earthquake of M7.5 occurred in Manyi, Tibet, which just dropped in this earthquake occurrence period. 1997年11月8日西藏玛尼发生7.;5级大震，正好在这个发震的时间段上。
- Forecast formula of occurrence period 发生期预测式
- Prediction of Occurrence Period of Cotton Pink Boll Worm 用马尔柯夫链分析法预测次年红铃虫的发生期
- Riots are of frequent occurrence in this province. 这省经常发生骚乱。
- 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。
- Robbery is now an everyday occurrence. 抢劫的事现在每天都有。
- 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。
- His remark shadowed forth some future occurrence. 他的话预示了今后要发生的事。
- Divorce has become an everyday occurrence. 离婚已成为每天都有的事了。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- It is more a made-up story than a real occurrence. 那是杜撰的故事，而不是真实发生的事情。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- An eclipse is an unusual occurrence. 蚀是不常见的事情。
- A preceding occurrence, cause, or event. 先前的前面的事件，事情
- A significant event, occurrence, or change. 新生事物重大的事件或变化
- He had to decide within a given period. 他得在一定时间内作出决定。
- The geographic occurrence or range of an organism. 生物的地理分布生物出现或分布范围的地理地区
- 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。
