English translation for "rate of natural increase"

自然增长率
自然增生率

Related Translations:

increase exchanges:  增加交流

increased desquamation:  脱屑增加

increasing mode:  递增方式

increase usefulness:  增加用途

increasing duty:  加重关税

increasing costs:  迤增成本

monotonic increasing:  单调递增

increase production:  增加生产

temperature increase:  温度升高温升

increased demand:  需求增加

Example Sentences:

	1.	Consequently , the rate of natural increase dropped from four to two per 1 000 over the same period . the age composition of the population can be reflected from the dependency ratio . the ratio of people aged under 15 and aged 65 and over to the population of working age ( aged 15 15岁以下和65岁及以上人口与工作年龄的人口( 15至64岁人士)的比率，即总抚养比率，由一九九七年的千分之三九九降至二零零二年的千分之三八一。
	2.	In this paper two - generation reproduction toxicity of fenvalerate , a - cypermethrin , chlorpyrifos , and triazophos was tested in a 21d period with water flea , daphnia magna , . the toxicity indicator included longevity , body length , days to first brood , days to first pregnancy , number of youth per female , intrinsic rate of natural increase ( r ) , and number of broods per female . accordingly , the dose - response relations and relations between the chronic responses and enzyme levels were investigated 为了确定水蚤体内生化指标与慢性毒害效应之间的关系，特别是在低浓度暴露状态下生化指标改变的生物学意义，以便能更准确预测早期农药对水蚤种群的潜在危害，本文以浙江省常用杀虫剂氰戊菊酯、高效氯氰菊酯、三唑磷和毒死蜱进行了大型蚤( d . magna )的急性和慢性毒性试验(包括子代水蚤的恢复试验) 。

Similar Words：

"rate of motion" English translation, "rate of movement" English translation, "rate of multiplication" English translation, "rate of mutation" English translation, "rate of national savings" English translation, "rate of natural increase of population" English translation, "rate of natural loss" English translation, "rate of natural mortality" English translation, "rate of natural population growth" English translation, "rate of net drilling" English translation