Support SOA, promote code reuse, enhance programming productivity, and contribute to a more flexible software environment with the virtual data access services layer.

使用虚拟数据访问服务层支持SOA、促进代码重用、提高编程效率和促成更灵活的软件环境。

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Comparatively intact forest layer, the clear layer of the arbores, thicket and vert. (5) Obvious continuity of vegetation community's distribution and poor productivity of community.

森林层次结构较为完整，乔、灌、草各层次间分化清晰：(5)植物群落分布的连续性明显及群落生产力水平低等群落特征。

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And when individual trees die due to lightning, insects, fungal attack or other causes, there is generally a second canopy layer waiting in the shade to take over and maintain productivity.

当个别树木死亡由于雷击，昆虫，真菌攻击或其他原因，但一般是第二冠层等候在阴凉处接管和维持生产力。

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