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- Dynamic seedling life table of Liriodendron chinense. 鹅掌楸苗期动态生命表。
- Study on the Natural Population Life Table of Pyla sp. 喜树幽斑螟自然种群生命表的研究。
- The Initial Application of Life Table of Semanotus sinoauster in Its Prediction of Population Density 粗鞘双条杉天牛生命表在种群数量预测中的应用
- X, and the age-specific life table of experimental population were established. 建立了实验种群特定年龄生命表。
- life table of population 种群生命表
- Construction and Analysis of the Susceptible Population Life Table of Plutella xylostella L. 小菜蛾敏感种群生命表的组建与分析。
- These tools were used to do study on life table of natural population of Anopheles sinensis. 应用这些工具进行了自然界中华按蚊种群生命表的研究。
- Analysis of Laboratory Population Life Table of Carmine Spider Mite,(Tetranychus cinnabarinus)Infesting Feng Chi Sang Morus L. 与相似的文献。
- Bionomics of Perissopneumon xyliae and life tables of its natural population. 云龟履硕蚧的生物学及其自然种群生命表。
- Methods The data of the fourth census in 1990 and sampling investigation of population in 1995 were used to obtain the elderly coefficient and longevity proportion,and abridged life table was applied to work out expectation life. 方法 采用全国第四次人口普查、1995年人口抽查和 1999年云南省长寿地区老年人口多点典型调查资料计算老年人口系数、长寿老人比例 ,并应用简易寿命表法计算平均期望寿命。
- A laboratory study was made on the effects of transgenic corn expressing cry1Ab toxin from the bacterium Bacillus thuringiensis(Bt) on the life table of an experimental population of corn leaf aphid Rhopalosiphum maidis Fitch. 在人工气候箱条件下研究了玉米蚜(Rhopalosiphum maidisFitch)取食表达cry1Ab杀虫蛋白Bt抗虫玉米的实验种群生命表.
- Results Established movements lifes table of wild Polygonum aviculare population. 结果编制出扁蓄野生种群的动态生命表。
- Aim To investigate the characteristics of life table of Anopheles sinensis in different areas. 目的：比较不同地区中华按蚊生命表的特性。
- Abstract The acting factors were used to build a life table of natural populations of the cotton bollworm in northern Xinjiang, and the life table was studied and discussed. 摘要 采用作用因子构建了北疆棉铃虫自然种群生命表,并对棉铃虫种群生命表进行了研究和讨论。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- life table of natural population 自然种群生命表
- A column in the periodic table of the elements. 属，族元素周期表上的一栏
- Four life tables of Aphis gossypii on four varieties of cucumbers were analyzed. 利用温室环境监控系统所监测的环境数据，开发出温室害虫种群动态模拟系统。
- Demography is the analysis of population variables. 人口学是对人口变量的分析。
- This paper reports abridged life tables of Lanzhou municipality in 1963 and 1982.The indices of life table were analyzed. 本文报告了兰州市城关区1963年和1982年简略寿命表,并对寿命表的主要指标进行了分析。
