恶名远扬生物圈二号封闭生态系统项目就是未经充分准备仓促上马的前车之鉴。 1991年，首批八个人住进位于亚利桑那州图克森附近的生物圈二号。
The infamous Biosphere 2 closed-ecosystem project outside Tucson, Ariz., first inhabited by eight people in 1991, is the best example of an approach not to take.
也有人会担心集中、垄断以及封闭式生态系统的危险，让人很难在各种服务之间切换。
There will also be worries about concentration and monopoly, and the danger of closed ecosystems that make it hard for people to switch between services.
新疆艾比湖是典型的干旱区湖泊，作为一个封闭的内陆湖泊，具有特殊的湿地、干旱生态系统。
The Ebinur lake of Xinjiang is located in an arid area, being a closed inland lake with a peculiar wetland-arid ecosystem.
海峰湿地间歇性干涸明显，是一较为封闭的高原水域生态系统。
Water dried up seasonally in Haifeng wetland, whose ecosystem was an insular plateau lake.
设施生产属人为控制下的封闭式生态系统，对无公害蔬菜的生产有其特殊的要求和技术。
Protective production belongs to occluded biosystem in man-made control, and there are especial need and technology in production of pollution-free vegetables.
设施生产属人为控制下的封闭式生态系统，对无公害蔬菜的生产有其特殊的要求和技术。
Protective production belongs to occluded biosystem in man-made control, and there are especial need and technology in production of pollution-free vegetables.
应用推荐