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- The interference index of population control,IIPC was used to evaluate the control effect of Avermectins,Yasimie and Yasimiejin on peach-aphid. 应用干扰作用控制指数法评价了阿维菌素、蚜虱灭、蚜虱蓟净等杀虫剂对桃蚜种群控制的作用。
- When nitrogen content was increased from 2.8.9% to 3.64%, NAR did not change while NUR and index of population growth decreased by 25% and 10%, respectively. 饲料氮从2.;89%25增至3
- 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。
- The index of population density of dominant insect pest was increased greatly in those tea gardens with higher chemical insecticide expense, especially for tea leaf hopper (Empoasca vitis Gotho). 农药费用高的茶园优势害虫种群密度大，尤以假眼小绿叶蝉明显。
- The effect of cold storage on the population quality of Trichogrammatoidea bactrae was evaluated from the aspects of their emergence rates, fecundity, wasp longevity and index of population trend. 从冷藏赤眼蜂的羽化率、雌蜂寄生卵量、雌蜂的寿命以及实验种群趋势指数四方面,用生命表技术系统地评价了低温冷藏对卷蛾分索赤眼蜂繁群品质的影响。
- A person's face is often an index of his mood. 一个人的脸部表情常常反映这个人的情绪。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- Index of Complex Eigenvalues of Population Operator 人口算子复本征值的代数指标
- interference index of population control (IIPC) 干扰作用控制指数
- Demography is the analysis of population variables. 人口学是对人口变量的分析。
- Interference index of population control( IIPC) 干扰作用控制指数
- We now come to the question of population. 现在我们开始谈人口问题。
- The increasing sale of luxury goods is an index of the country's prosperity. 奢侈商品销售量日增是该国繁荣的标志。
- Do you know the density of population in this area? 你知道这个地区的人口密度吗?
- No,actually,it's more a matter of population. 不，实际上这更是一个人口问题。
- The face is the index of the mind. [谚]脸是心灵的镜子。
- Color is commonly an index of ripeness or spoilage. 色泽一般是成熟和败坏的标志。
- Description for type of population. 对填充类型的说明。
- Censuses of population and statistical yearbooks. 人口普查与统计年报。
- Japan has a high density of population. 口密度很大。
