英语词汇index of population trend怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

网络释义

1
?族群趋势指数
... 指数型趋势面 exponential-type trend surface 族群趋势指数 index of population trend 离差指数离中趋势指数 indexofdispersion ...

短语

1
the index of population trend
种群动态
2
index of population development trend
种群增长趋势指数
3
trend index of population
种群趋势指数

双语例句

1
An approximate variance estimator for index of population trend developed with delta-method and its application;
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。
2
The index of population trend in treatment of spraying chemical insecticides was 7.20, The index of population trend would increase in 1.43 times against that in control.
施用化学杀虫剂的种群趋势指数（）为7.20，干扰作用控制指数为1.43，即种群趋势指数将增长为对照的1.43倍。
3
Effect of temperature on development, survival, reproduction, population parameter and population trend index of Spodoptera litura (Fabricius) were studied.
研究了温度对斜纹夜蛾的发育、存活、生殖、种群参数和种群趋势指数的影响。

单词	index of population trend
释义	index of population trend 简明释义种群趋势指数网络释义 1 ?族群趋势指数 ... 指数型趋势面 exponential-type trend surface 族群趋势指数 index of population trend 离差指数离中趋势指数 indexofdispersion ... 短语 1 the index of population trend 种群动态 2 index of population development trend 种群增长趋势指数 3 trend index of population 种群趋势指数双语例句 1 An approximate variance estimator for index of population trend developed with delta-method and its application; 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。 2 The index of population trend in treatment of spraying chemical insecticides was 7.20, The index of population trend would increase in 1.43 times against that in control. 施用化学杀虫剂的种群趋势指数（）为7.20，干扰作用控制指数为1.43，即种群趋势指数将增长为对照的1.43倍。 3 Effect of temperature on development, survival, reproduction, population parameter and population trend index of Spodoptera litura (Fabricius) were studied. 研究了温度对斜纹夜蛾的发育、存活、生殖、种群参数和种群趋势指数的影响。
随便看	geared diesel locomotive geared diesel machinery geared-diesel machinery geared diesel vessel geared door geared-down geared-down engine geared-down motor geared down motor geared-down speed geared drill gear drive geared engine geared exciter geared fan gear feed geared feed pump geared foot-operated generator geared head geared head different drill geared head engine lathe geared-head engine lathe geared head gap-bed lathe geared head lathe geared head lathe