研究人员称，自从冰川从湖中诞生，创造了这样寒冷，黑暗，无氧的生态环境时起，这种细菌菌落已被隔离了约150万多年。
The bacteria colony has been isolated there for about 1.5 million years, researchers say, ever since the glacier rolled over the lake and created a cold, dark, oxygen-poor ecosystem.
根据预测，随着被称为智能手机的设备销售量在2011年超越PC，它们不再是IT部门眼中被隔离的讨厌鬼，而是IT生态环境中不可分割的一部分。
With the sales of so-called smartphones projected to exceed the sales of PCs by 2011, they are no longer an isolated nuisance for corporate it departments but an integral part of their it ecology.
研究者指出，驯鹿存活了下来是因为高产、高的生态环境适应性以及持续的由距离引起低隔离程度。
The researchers suggest this animal survived because of high levels of fecundity and ecological flexibility and continuing low levels of isolation by distance.
正在隔离区中进行研究工作的卢博克德州科技大学（Texas Tech University）放射生态学家罗纳德·切瑟（RonaldChesser）说：“切尔诺贝利的真实故事就是一出人间悲剧。”
“The true story of Chornobyl, ” says Ronald Chesser, a radioecologist at Texas Tech University in Lubbock who carries out studies in the Exclusion Zone, “is the human tragedy.”
为提高城市隔离片林生态效益及景观面貌，片林结构除简单的乔木层外，还应具有一定面积的复层混交种植结构。
Besides the simple arbor layer, the multilayer plantation structure should be adopted in order to enhance the ecological benefits and scene values of isolating greenbelts in Beijing.
城市绿化隔离带是改善城市生态环境，改变城市形象，提高居民生活质量的重要手段和措施。
The urban greenbelt is the important means and measure to improve the urban ecological environment and urban image and to change the quality of residents' life.
检验自然选择在物种形成中的作用的一个主要挑战是，将生殖隔离的出现与有着生态学重要性的特征联系起来。
A principal challenge in testing the role of natural selection in speciation is to connect the build-up of reproductive isolation between populations to divergence of ecologically important traits.
检验自然选择在物种形成中的作用的一个主要挑战是，将生殖隔离的出现与有着生态学重要性的特征联系起来。
A principal challenge in testing the role of natural selection in speciation is to connect the build-up of reproductive isolation between populations to divergence of ecologically important traits.
应用推荐