查询词典 shrub steppe

A low-growing evergreen shrub native to cool regions of the Northern Hemisphere and having tiny leaves, small pinkish or purplish flowers, and black, berrylike fruits.

岩高兰一种原产于北极寒冷地区且生长缓慢的常绿灌木，生有细小的叶子，开粉红色或紫色的小花，结黑色的浆果状果实

The species diversity of stratum layer, shrub layer and forest community was each higher but that of herbage layer and bine layer each lower than that in control.

乔木层和灌木层的植物种多样性较大，群落植物种多样性较高，但草本层和藤本层的多样性比纯林低。

Deciduous shrub of eastern North America having blue-black berries and tough pliant wood formerly used to make arrows.

北美东部的一种落叶灌木，浆果蓝黑色，其木柔韧、以前用来做箭。

Deciduous shrub of eastern North America having blue-black berries and tough ''.

北美东部的一种落叶灌木，浆果蓝黑色，其木柔韧、以前用来做箭。

Ornamental evergreen shrub of Pacific coast of North America having dark green pinnate leaves and racemes of yellow flowers followed by blue-black berries .

北美太平洋沿岸的装饰性常绿灌木，有深绿色的羽状的叶子和黄花的总状花序及蓝黑色的浆果。

Shrub to moderately large tree that grows in brackish ''.

生长于非洲西部和热带美洲的沿海的''。

Erect or climbing shrub of Brail with deep pink to red flowers .

巴西的一种直立或攀援灌木，花深粉红色或红色。

Large shrub or small tree of the eastern United States having bristly stems and large clusters of pink flowers.

美国东部的一种大灌木或小乔木，茎有刚毛，花簇大、粉红色。

See from the function results, it is best for deciduous broadleaf tree on the potential of absorbing carbon-releasing oxygen, decreasing temperature and purifying SO2; next is fewer shrub and coniferous tree, grass is the worst.

从作用效果来看，落叶阔叶树类的吸碳放氧、降温效果和SO2的净化潜力最佳，其次为花灌木和针叶乔木树种，草类最差。

Also it synthesize the natural law on vegetation distribution and the present situation on urban forestry construction to define the main proportion on urban species actually:the proportion between aiphyllus tree and deciduous tree is 3:7; the proportion between arbor and shrub is 2:1; the proportion between coniferous tree and broadleaf tree is 1:4; the proportion between fast-growing trees and slow-growing trees is 1:1.The following tree species programmed in urban forestry construction of Qingdao on the above-mentioned demanding on trees planning in this thesis

本文以上述提到的树种布局规划要求，分别规划出了青岛市城市森林建设中的行道树种、公园绿化树种、游园、街头绿化树种、山地风景林树种、居住区绿化树种、机关、学校、医院等处的绿化树种、工矿区绿化树种、海岸抗海雾、海风树种、耐盐碱树种、垂直绿化树种、地被植物，并对城市森林的近自然化配置，以及在天然森林已不存在的地方，运用技术模拟原来的天然森林进行恢复和重建进行了初步阐述。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。