The ISTP team's research demonstrates that the population and job density of cities rose or remained constant in the 1980s after decades of decline.
ISTP团队的研究表明，在经历了几十年的衰退后，城市人口和工作密度在20世纪80年代上升或保持不变。
The current system requires constant sustainment intervention to maintain operations and does not address the growing population of small and micro satellites in orbit.
目前系统需要不断操作干预以保持运作，并且没有解决日益增长的轨道上小型和微型卫星的数量。
It says rapid population growth and a bulge in the number of young people means the absolute number of people in Africa living in dire poverty may remain broadly constant.
该报告说，人口的快速增长和众多的年轻人意味着生活在贫困线以下的非洲人口的绝对数量可能会大致保持稳定。
In obvious contrast to Asia, the population growth rate of Europe experienced a constant drop for 50 years, dropping from 18% to 4%.
与亚洲形成鲜明对比的是欧洲，人口增长率连续50年出现下降，从18%降到了4%。
In response to the appearance of such variants in the cell population the concentration of the toxic chemical in the growth medium is increased, thus keeping the selection pressure constant.
为应对细胞污染中出现的变异，有毒物质的浓度是逐步增加的，以此保证筛选力度的稳定。
The sharp increase of population size and constant enlargement of economic activity scale have aggravated the contradiction between population and environment.
人口数量的激增和经济活动规模的不断扩大，加剧了人口与环境之间的矛盾。
The main reasons for this are constant population increase, constantly enlarged cultivation of land against population pressure and the resultant severe ecological degeneration.
形成这一状态的主要原因是人口的持续增长和为缓解人口压力不断扩大的垦殖及由此造成的生态环境的严重退化。
However, the ISTP team's research demonstrates that the population and job density of cities rose or remained constant in the 1980s after decades of decline.
然而，默多克大学科学与技术研究所的研究小组的研究证实了城市人口和工作密度在几十年的下降之后从二十世纪八十年代以来反而增长或保持不变。
However, the ISTP team's research demonstrates that the population and job density of cities rose or remained constant in the 1980s after decades of decline.
然而，默多克大学科学与技术研究所的研究小组的研究证实了城市人口和工作密度在几十年的下降之后从二十世纪八十年代以来反而增长或保持不变。
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