| 1. | The siting of refineries is at a distance from population center .
炼油厂的厂址总在远离人口集中的地方。 |
| 2. | Israeli population centers would not remain immune indefinitely .
以色列的居民中心不会无限期地不受侵犯。 |
| 3. | The oil industry is marked by an element of danger , hence the siting of refineries is at a distance from population centers .
石油工业的特征是有一点危险性，所以炼油厂的厂址在远离人口集中的地方。 |
| 4. | A population center , often incorporated , larger than a village and usually smaller than a city
镇人口中心，通常为合法实体，比村庄大但通常比城市小 |
| 5. | Evolvement and comparative analysis of the population center gravity and the economy gravity center in recent twenty years in china
近20年来中国人口重心与经济重心的演变及其对比分析 |
| 6. | Only if the nearest population center is 10 or more kilometers downwind will the fallout lead to few if any rapid fatalities
人口聚集中心必须在下风处10公里以外，立即死亡的人数才会趋近于零。 |
| 7. | But this sensitivity also made me wonder whether slight , purposely applied inputs to a hurricane might generate powerful effects that could influence the storms , whether by steering them away from population centers or by reducing their wind speeds
不过这种敏感性也让我好奇，刻意加在飓风上的微小初始差异，是否可产生足以影响飓风的强大效力，不论是表现在将飓风引离人口稠密区，或是减低其风速。 |
| 8. | Census micro data ( 1850 , 1860 , 1870 , 1880 , 1900 - 1920 , 1940 - 2000 ) are available from minnesotta population center , university of minessota . the entire 1880 us and 1881 canadian censuses are also available from north atlantic population project
原始个别普查资料（ 1850 , 1860 , 1870 , 1880 , 1900 - 1920 , 1940 - 2000 ）可于明尼苏达大学的明尼苏达人口中心查得。由“北大西洋人口计划”亦可查到1880年全年的美国普查与1881年的加拿大普查资料。 |
