人口出生率

The best solution I think is to put the birth rate under control.

最好的解决办法，我认为是把人口出生率控制。

The birthrate in this country has dropped to 0.3 percent.

这个国家的人口出生率已经降至0.3%。

Utah has the highest birthrate in the United States.

犹他州拥有最高的人口出生率在美国。

Then we researched the existence of periodic solution of order one of this modified model by using theories of invariant set of impulsive semi-dynamical system and Brouwer\'s fixed point.

第三章考虑了一类具有非线性传染力函数的传染病模型，其中人口出生率和死亡率相同并且患病者病愈后可自然获得免疫但一段时间后免疫力也会自然丧失。

Professor Jung said South Korea's consistently decreasing birth-rate gave her students fewer chances to watch and practice delivering babies, making Noelle's presence necessary.

Jung教授指出，韩国不断下降的人口出生率让她的学生观察和练习接生的机会越来越少，所以诺艾尔的存在是很有必要的。

Nugent says statistics on the fertility rate were also revealing.

Nugent说人口出生率的统计数据也揭示了这一点。

And since the Planned Parenthood policy as a basic national policy has been put into practice for more than 20 years, the last few years start to see the result.

不仅在城市，而且在农村人口出生率也开始逐年下降。学龄儿童锐减必然会给我国教育事业的发展带来一些新的管理问题。

Ireland is the most fertile EU country followed by France and the UK.

爱尔兰的人口出生率最高，法国和英国分列二、三。

The fertility rate is the number of children a woman can expect during her lifetime; 2.1 is the replacement level, the point at which the population stabilises.

人口出生率是指女性一生预期生养的儿童数目；2.1是更替水平，人口在这一点上保持稳定。

We can't rely on the natural decline of birth rate through economic development.

我们不能等待经济发展来引发人口出生率的自然下降，只能在大力推动社会经济发展的同时，积极推行计划生育，控制人口过快增长。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。