您要查找的是不是：
- In this paper, based on the Morris-watt population mathematical model, and by means of exclusion analysis, addition analysis and interference analysis methods, an index of population control was designed. 在种群系统的信息处理中,本文着重讨论控制指数在种群系统控制中的应用。 控制指数是以系统方法改进昆虫种群生命表和Morris-Watt种群数学模型的基础上,采用排除分析法、添加分析法和干扰分析法提出的一个指数。
- He is reputedly brilliant at mathematics. 据说他在数学方面很有才能。
- It is a complexity of higher mathematics. 这是一道高等数学的难题。
- The elemental mathematics is very easy. 初等数学很简单。
- Mathematics arose from the need of men. 数学是由于人们的需要而产生的。
- This city has a population of more than 1,000,000. 这个城市人口超过一百万。
- I'll have to rub up my mathematics. 我得把数学复习一下。
- I'm afraid I'm quite hopeless at mathematics. 我担心我的数学怎么也学不好。
- A desert has no settled population. 沙漠没有固定的居民。
- He is superior to his brother in mathematics. 他的数学比他兄弟好。
- He taught mathematics for many years. 他教数学已很多年了。
- She surpassed her brother in mathematics. 她在数学方面超过了她的兄弟。
- He has a great faculty for mathematics. 他具有很强的学数学的才能。
- There was a steady increase in population. 人口在不断增长中。
- Mathematics is difficult for some students. 有些学生觉得数学困难。
- What is the population of this country? 这个国家的人口是多少？
- He was weak in mathematics, but good at English. 他数学差，但英语好。
- Mathematics is her favorite subject. 数学是她喜欢的科目。
- She was wrestling with assignments in mathematics. 她在苦苦对付数学作业。
- Disease has decimated the population. 疾病使大部分人死亡。
