The Year of Six Million: Math of Population — was Malthus Right?写在世界人口六十亿日: 人口的数学计算——马尔萨斯是否正确?Will Malthus Continue to Be Wrong?马尔萨斯会一直错下去 吗 ?Malthus believed that population increase would outpace increases in the means...
...Malthus's theories about the ineluctable tendency of populations to exceed resources.马尔萨斯的人口增长会不可避免地超出资源承载限度的理论Will Malthus Continue to Be Wrong?马尔萨斯会一直错下去 吗 ?...Thomas Malthus's essay on population.托马斯·马尔萨斯...
This will answer for a chisel.这东西可以当凿子用.He used a hammer and chisel to chip away at the wall.他用榔头和凿子铲墙。They sit and chisel the stone to size.他们坐下来把石头凿成合适的大小。This chisel is useful for getting into awkward spaces.这凿子在要伸入到犄...
Astronomers usually assume that interstellar dust is closely confined to the galactic plane.天文学家通常认为,恒星际星尘都是紧靠着银河平面的.Early astronomers thought that our planet was the centre of the universe.早期的天文学家认为我们的星球是宇宙的中心。Astronome...
Gold and green satin brocade drapes hung at the windows.窗上挂着金碧辉煌的缎子窗帘.The sofa was covered with expensive brocade.沙发上铺上了华贵的织锦.Aesthetic taste and the level of technic refrains the handicraftTujia brocade.审美眼光和技巧的高低制约着织锦工...