您要查找的是不是:
- ecological function value 功能价值
- Landscape Ecological Functions of Field Boundary. 试论农田边界的景观生态功能
- Constant_expression is a constant, NULL, or a system function value. constant_expression可以是常量、NULL或系统函数值。
- Three-dimensional ecological characters of urban green space and its ecological function. 城市绿地的三维生态特征及其生态功能。
- Ecological Function Analysis for Planting Subsystem in Xiaozhangzhuang Village of Yingshang County, Anhui Province. 安徽省颖上县小张庄种植业子系统生态功能分析
- Philosophically, its subject is confined to nature persons while its object is the environmental ecological function. 甚至有人提出了“环境权这个概念是否真的有必要?
- The result of GSA achieves the coverage of 95.64 percent and the fitness function value is 0.8706. 仿真结果表明,遗传模拟退火算法运行结果的覆盖率为95.;64%25,目标函数值为0
- The improved algorithm adopts adaptive crossover and mutation variate according to the adaptive function value. 改善的算法采用自适应的交叉和变异算子,让交叉和变异概率随适应函数值的变化而变化。
- But ,the disturbances from human destroyed the ecological environment of elm woodland steppe seriously and influenced its special ecological function. 然而 ,由于人类的干扰 (如毁林开荒、过度放牧、甚至片面地建立人工林群落等 ) ,不同程度地破坏了榆树疏林的生态环境 ,影响了其特有的生态作用。
- The theories and methods of urban ecological function zoning are proposed and a case of Changchun is researched in the paper. 城市生态功能区划是建设生态城市的基础和科学依据。
- Road afforesting. Construct a traffic corridor network combining with ecological function, traffic function and landscape function. 道路绿化,建设符合生态功能,交通功能、景观功能的交通廊道网络组织。
- Through multiple generation calculation, the minimum point of penalty function value was obtained, then the optimalc reduction distribution was found. 通过粒子群多代运算,求出罚函数值最小点,得到压下负荷最佳分配点。
- This article mainly summarized the definition and type of halophyte,its root,stem,leave adaptation to salt and its ecological function. 本文主要综述了盐生植物的定义及类型,盐生植物的根、茎、叶对盐渍土壤的适应特征、适应方式以及生态作用等。
- "To create stickiness you must have functional value and also community value. “要吸引用户,你必须有功能型价值以及社区型价值。
- Ecological function regionalization is the foundation of the scientific management for the regional eco-environmental conservation and construction. 生态功能区划是实施区域生态环境保护建设和科学管理的基础.
- From the point of whole packaging system,the meaning and connotation of packaging value was analyzed and outlined,including function value and exterior value. 从包装整个系统出发,分析研究了包装价值的内涵,包括功能价值和外延价值。
- It is, therefore, of great urgency protect the eco-environment of the source region of the Huanghe River by means of setting up a special ecological function reserve. 因此,保护黄河源区生态环境、建立黄河源头特殊生态功能保护区已刻不容缓。
- Some researches and projects showed that aeration was an available way to dispel water blackening and stink and renew the ecological function of water bodies gradually. 实验室和工程实践证明,对河道进行曝气充氧可以消除河道黑臭,使水体逐步恢复自然的生态功能。
- In addition to their functional value, icons can play a significant role in conveying the desired brand attributes. 除了具备功能价值,图标在传递品牌属性上还有重要的作用。
- Establishing an estimate system or standard for ecological function of ecological revetment and developing general studies in river engineering are the main task for the future. 建立关于生态型护岸生态功能的评价体系或标准以及对河道开展综合治理是今后的研究重点。