Where population is growing fastest, in sub-SaharanAfrica, emissions per person are only a few percent of what they are in theU.S.—so population control would have little effect on climate.

在撒哈拉沙漠以南非洲人口增长最快的地方，人均排放只是美国人均排放的百分之几——因此控制人口对气候没有多大影响。

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The active factor life tables of BPW natural population were constructed. The controlling effect of active factors was evaluated by using exclusion index of population control (EIPC).

组建了以作用因子为组分的夏季自然种群生命表，并运用排除作用控制指数法分析了各种因子对假茎象甲自然种群的作用。

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Objective to find out the characteristics of epidemic cerebrospinal meningitis outbreak among floating population in construction sites and to evaluate the effect of control measures.

目的了解大型建筑工地流动人群中流行性脑脊髓膜炎(流脑)爆发的特点，评价防制措施的效果。

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The effect of this tardiness has been to put physical activity in reverse gear compared with population trends and advances in tobacco and alcohol control and diet.

CNN: STORY HIGHLIGHTS