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- Based on investigating the Forest Park and City Park in Yanan, the tree species structure of park green space in Yanan City was analyzed. 摘要在对延安市森林公园和城市公园绿地进行调查的基础上对延安市公园绿地的树种结构进行了分析。
- The results indicated that the species diversity variation in Castanopsis eyrei community was obvious and the species structure was complicated. 结果表明，甜槠群落物种多样性梯度变化规律明显；
- The tree species structure optimizing result: broadleaved species ascend from 27% to about 50%, needle species decreased, P. Thunbergii area lowed from 62.85% to 33.10%, the integrate proportion of needle and broadleaved species is closed to balance. 树种结构优化决策结果是扩大了阔叶树种比重;由原来的27%25左右上升到50%25左右; 降低了针叶树种比重;黑松树种占的面积由原来的62.;85%25下降到33
- After the timberline ecological transition zone，the species structure differences between the sunny slope and the shady one decreased and the types of vegetation communities also became similar. 林线生态过渡带结束，阴、阳坡的物种组成差异缩小，植被群落类型也相似。
- The species importance can be simply understood as the important value of species in the ecosystem, which consists of three indexes: species structural important value (SIV), functional important value (FIV) and dynamical important value (DIV). 物种重要性可以简单地理解为生态系统中物种的重要值,它由三个指数构成,即物种结构重要值(SIV)、功能重要值(FIV)和动态重要值(DIV)。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- The two halves of the structure didn't marry up. 该结构的两部分未配合好。
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- High winds put great stress on the structure. 大风作用于该建筑物上而产生巨大的应力。
- The structure had keeled over in the high winds. 那座建筑物让大风给刮倒了。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- A fan-shaped anatomical structure. 扇形器官扇形的解剖结构
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- A secluded structure, such as a bower, in a garden. 凉亭一种在花园中建造的隐蔽性建筑物，如凉亭
- The microscopic structure of tissue. 组织机构组织的微观结构
- There are many species of chrysanthemum. 菊花品种很多。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- We visited the museum, a steel and glass structure. 我们参观了博物馆，它是一座钢和玻璃的建筑物。
- We know a lot about the structure of genes now. 如今我们对基因的结构有了较多的了解。
- The giant panda has become an endangered species. 大熊猫已成了一种濒临灭绝的动物。
