查询词典 sustainability

The life cycle analysis of Australian meat production, by the Sustainability Assessment Program at the UNSW Water Research Centre, found that feedlot beef production generated slightly less greenhouse gas per kilogram of meat than grass-fed beef.

新南威尔士大学的水资源研究中心可持续评估项目进行的关于澳大利亚肉品生产生命周期分析表明，舍饲肥育生产牛肉的方式与放牧饲养相比，每公斤牛肉会产生稍少的温室气体。

However, agricultural production has the characteristics of large coverage, frequent changes seasonally and regionally, and low benefit in per unit area, therefore, it is unfeasible to get the annual information through ground in situ measurement neither in the aspect of technical issues nor in the aspect of economic sustainability.

获取大范围的水稻种植空间分布、面积和产量信息对指导水稻生产、合理分配水资源，以及监测大气环境变化等具有重要的意义。

Scientists say the seriousness of the species's plight is not clear, but critics warn that the hoki fishery is losing its image as a showpiece of oceanic sustainability.

科学家说，这种鱼的处境有多严重不清楚，但批评者警告说，无须鳕捞捕业已逐渐丧失海洋永续发展的样板地位。

Here are some additional comments on sustainability, company growth opportunities, in-plant package manufacture and more.

以下是一些补充意见的可持续性，公司的发展机会，在工厂制造和封装等等。

Forest carrying capacity is an important and key index in evaluating forest sustainability and one gist of forest management and decision-making of a certain region.

它是森林可持续性评价中的一个重要的关键指标，是区域森林经营管理决策的依据之一。

The analytical approach/tool of MultipleScale Integrated Assessment of Societal Metabolism, proposed by Mario Giampietro,Kozo Mayumi, et al., based on the congruence among resource "Human Activities", resource "Exosomatic Energy Flows", and "Added Value Flows" in the hierarchical socioeconomic systems, using, in an integrated way, incommensurable variables referring to nonequivalent descriptive domains(coming from various scientific disciplines) and data gathered at distinct hierarchical levels, addresses the various relevant dimensions of societal development and sustainability.

社会代谢多尺度综合评估&分析方法，根据&人类活动&资源、&体外能&资源和&增加值三者在社会经济系统中的叠合关系，将各个尺度（如国家、经济部门、次级部门、省/州、社区、直至个别家庭）上，社会经济系统的能量代谢过程，与该系统的经济、人口（如人口的年龄结构和性别构成）、生态和社会（如义务教育和退休年龄的规定）特征结合起来，利用多个关系式，计算出社会经济系统的人类活动量、体外能投入量、劳动生产率、生物—经济压力和体外能超循环强度等参数、指标，进而综合地分析评估社会经济系统发展与可持续性。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

Not only that, we must also improve the sustainability of the construction risk management, risk management reports submitted to update the project risk management plan and rich library of knowledge and case.

不仅如此，还必须完善持续性代建风险管理，提交风险管理报告、更新项目管理计划和丰富风险库的知识和案例。

His interests include urban transport in developing countries, congestion management and sustainability in Asian megacities, and non-motorized transport planning.

他的研究方向是发展中国家城市交通、交通拥堵管理、亚洲大都市可持续发展以及非机动化交通规划问题。

Sustainability guru William McDonough is bringing green design to the Rust Belt and to brand-new megacities in China.

可持续性设计专家威廉·麦唐诺正逐步将他的绿色理念带入美国的&铁锈地带&和中国的新兴大城市中。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。