查询词典 decrease in population

The thrips population in the field was complex, but consisted mainly of Odontothrips loti, which accounted for over 80% of the population.

田间蓟马种类以牛角花齿蓟马为主，占田间蓟马混合种群数量的80%以上。

The case is based on the fact that:(1) population growth has been low, at 0.8%, since 1997;(2) the population that can afford property is declining; and (3) the fast-growing low income group lacks the social mobility to boost its purchasing power.

出现这种状况的依据是：（1）1997年以来人口增长率一直很低，为0.8%，（2）买得起房产的人口数量正不断下降，（3）迅速扩大的低收入群体缺乏社会流动性去提高购买力。

Explain in detail T. R. Malthus' theory of population and the various checks to population growth.

详细说明马尔萨斯的人口理论和控制人口增长的各种措施。

Then, based on Malthus population prediction model, some new population models are brought in considering more kinds of factors....

再在马尔萨斯人口模型的基础上，引入了考虑众多因素的人口模型，分别基于常微分方程和偏微分方程进行了研究。

Based on the Malthusian and Logistic population model, this article has done a corresponding improvement in the data has been established according to our population model.

基于马尔萨斯及Logistic人口模型，本文做了相应改进，根据已有数据确立了我们的人口模型。

Population scientists believe that unless this cause of death is curtailed, the manatee population will not recover.

人口科学家相信，除非这个死亡原因，是遏制， manatee人口将无法收回。

Based on the matchable length of the replacement odontostyle and functional odontostyle, and also the evident gap of the replacement odontostyle and total stylet length, between the four successive stages of juveniles and its female in each population, it assured that each population was not mix with other morphologically similar Xiphinema species.

由每一群的雌虫及其4个前后龄期幼虫间的替代齿针和功能性齿针的长度相当接近，以及替代齿针和总口针的长度具有明显区隔的结果，这10群剑线虫中都无混杂其他形态类似的剑线虫种类。X。

Population more than 29 million, is one of the minimum countries of density of population on average in the world south and U.S.A. are about 5000 kilometers in the neighbor

人口2900多万，是世界上平均人口密度最低的国家之一南部与美国为邻约5000公里

However, the trade-off between extra computational effort with respect to increased population size is a problem specific decision to be ascertained by the modeller, as doubling the population size will approximately double the solution time for the same number of generations.

但是，权衡额外的计算方面的努力，增加人口规模是一个问题的具体决定，确定了建模，作为增加一倍的人口规模将约增加一倍，解决的时间相同数量的后代。

Native American population in 2003 was 2786652 persons, of the total population of 1%.

美国原住民的人口在2003年为2786652人，占总人口的1%。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。