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- 与 paper size 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper starts with the market inves- tigation of brand female clothing in wuxi area,put forward some rational advice for adjusting and revising our country's present clothing size standard,and proposes the corresponding countermeasure for solving the prob- lem of fitness when purchasing clothes online.
本文从无锡地区品牌女装的市场调研着手,提出了合理调整和修订我国现行服装号型标准的建议及解决网购服装合体性的相应对策。
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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。
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This paper illustrates how the combination of the spatial(300m pixel size),spectral(15 narrow bands in the visible and NIR),and temporal(revisit time 2-3 days) dimensions of MERIS can be used to retrieve sub-pixel fractional land cover composition over heterogeneous areas.
本文说明了如何结合MERIS的空间维(像元大小为300m)、光谱维(可见光与近红外范围内15个通道)和时间维(重返周期2—3d),用于获取不同区域土地覆被组分的亚像元级组成权重。
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In this paper, the author applied mutation theory in determining toppillar critical size in sub level mined and post filled area, and provided important value for making post minging and filling plan.
利用突变理论确定深部铜矿分段空场,嗣后充填地段的顶柱临界尺寸,为后期编制采矿和充填作业计划提供理论依据
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In this paper a computation model of corrosion rate versus grain size of nanocrystalline zircaloy -4 has been presented.
结果表明:与普通晶粒相比,纳米晶粒尺寸下锆合金的速率低于普通晶粒锆-4合金的腐蚀速率,随着纳米晶粒尺寸的减小,锆-4合金的腐蚀速率也降低;同时,纳米化组织处理推迟了锆-4合金氧化转折时间,使其抗氧化性能得到了提高。
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The structural function and its implement of TIDS System developed in the AutoCAD package are introduced in this paper. In this system, so long as a basic size and tolerance code are inputted by users at a time, the deviation can be searched and printed or dimensioned in the drawing directly. Thus, automation is completely realized to indicate tolerance in the CAD System.
本文介绍了作者在AutoCAD软件中开发的子系统TIDS的功能及其结构和功能实现等,该系统能根据用户一次输入的基本尺寸和公差带代号检索出极限偏差数值并作打印或自动标注,从而在CAD中完全实现了尺寸公差标注的自动化。
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Performa74 offset press technical data sheet format: 520×740mm minimum paper format: 330×330mm maximum business card printing and membership card making format: 510×735mm printing plate size: 575×740mm
Performa74胶印机技艺数据最不小纸弛幅面:520×740mm 最小纸弛幅面:330×330mm 最不小制卡和会员卡制息幅面:510×735mm 印版尺寸:575×740mm
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Vechile's reliability and safety are required strictly in the course of transport. In this paper, impact factors on safety of over-size transport are analyzed firstly.
本文系统分析了公路大件运输安全性的影响因素,建立了运输车辆的可靠性、稳定性和通过能力模型,并在此基础上用VB语言开发出了公路大件运输计算机决策系统。
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This paper discusses the influence of different calcining process of the APT is roasted to produce the yellow tungsten oxide on the quality of tungsten carbide powder, investigates the cause from particle size uniformity and the quantity of agglomerated particle s and improves the calcining process.
从粒度均匀性和聚集团粒量讨论了APT煅烧成WO3时的煅烧工艺对WC质量的影响,分析了引起WC粒度均匀性和聚集团粒的原因,并提出了较佳煅烧工艺。
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Can be paper-thin to larger than body size.
可以象纸一样薄,也可以比身体还宽。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力