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There are two modeling methods used in this research area, that is analytical method and numerical method. Analytical method can be used to analyze the sound pressure within enclosures, and to analyze the control mechanisms theoretically, however it can be used for regular cuboids only. Numerical modeling method can manage enclosures with arbitrary boundaries, nevertheless, the results obtained using this method are dispersed sound pressure. It is hard to conduct real time control with this method. The two modeling methods have their own inherent defects.

对于封闭空间的结构声辐射,目前有解析建模和数值建模两种建模方法,解析建模方法可以从理论上对系统进行分析,探讨消声机理,但它只适用于长方体等规则封闭空间;数值建模方法不受空间边界形状的限制,得到的是空间声压的离散结果,难以用于实时控制,两种方法都存在着局限性。

The study involves spatial reference, spatial deixis, spatial meaning, spatial language structure and so on.

研究涉及空间参照、空间指示、空间语义、空间语构等问题。

Thus, the space of hot spring is a microfilm of Nature or an artistic work, which not only a physical space for dippers' walking, swimming and sleeping as well as a place for growing, resting, and eating. In short, a hot spring space is really an aesthetic space for dippers' seeing, touching and thinking.

因此,温泉空间彷佛立体的自然缩影或艺术作品,不仅是可行,可游,可卧的物理空间,亦是可养,可憩,可食的生理空间,更是可视,可感,可思,可悟的美学空间

The results showed that the spatial distribution range of soil fertility in Qinling forest area on south slope was soil pH volue 5.97~6.89,organic matter 6.6~50.1 g·kg~-1, total N 0.5~3.8 g·kg~-1 ,available N 33.6~257.3 mg·kg~-1,available P 0.81~5.8 mg·kg~-1,available K 38.9~262.4 mg·kg~-1,clay particle content 11.3%~18.1%,capacity of exchangeable base 68.5~310.2 mmol·kg~-1 respectively; The spatial variation degree of available P, organic matter, and total N was big,whereas clay particle content and active acid pH value was small;the spatial variation degree of soil pH value, organic matter, available P, clay particle content, and capacity of exchangeable base decreased with the deep of soil,whereas soil total N、available N, and available K increased.

结果表明,秦岭南坡土壤肥力指标在整个土壤剖面空间分异范围分别为:土壤pH值5.97~6.89,有机质含量6.6~50.1 g·kg-1,土壤全N含量0.5~3.8 g·kg-1,碱解N含量33.6~257.3 mg·kg-1,速效P含量0.81~5.8 mg·kg-1,速效K含量38.9~262.4 mg·kg-1,粘粒含量11.3%~18.1%,阳离子代换量68.5~310.2 mmol·kg-1;其空间分异程度以速效P、有机质和土壤全N含量较大,土壤粘粒含量和土壤pH值较小;随着土层的加深,土壤pH值、有机质、速效P、土壤粘粒含量和阳离子代换量空间分异程度减小,而土壤全N、碱解N和速效K含量空间分异程度增大。

As with any other Stirling device, heat flows from the expansion space to the compression space; however, in contrast to the Stirling engine, the expansion space is at a lower temperature than the compression space, so instead of producing work, an input of mechanical work is required by the system (in order to satisfy the second law of thermodynamics).

与任何其他斯特林装置,热流量的扩大空间的压缩空间;然而,在对比的是斯特林发动机,扩大空间,在更低的温度比压缩空间,所以不是生产工作,投入机械工作所需要的制度(为了满足热力学第二定律)。

The development of frame structure architectural space in ancient China plays an important role in the evolution of antique furniture.

中国古代构架式建筑空间的发展对古典家具的演变成长起着极为重要的形响作用,其建筑空间高度的转变直接影响了古典家具的形体从低到高的变化,一些新颖的家具形态的创造在很大程度上受到建筑空间里不严密的结构因素的影响,同时建筑内外空间成熟发展也促进了家具功能的逐步完善。

At a certain range, habitat loss and its spatial structure can benefit the control of the epidemic disease, which indicates the possibility of using human disturbance in habitat as a potential epidemic-control method in conservation.(6) Not only the quantity of habitat loss but also the spatial correlations of patch types caused by nonrandom habitat loss affect the invasion and transmission of disease. More fragmented landscape (high amount of habitat loss, low clustering of lost patches) hinders the parasitic infection, which also indicates that whether the spatial heterogeneity benefits or hinders the invasion is dependent on the considered ecological process.(7) Two components of the spatial heterogeneity (the amount and spatial autocorrelation of the lost habitat) form a trade-off in determining the host-parasite dynamics.(8) Within a certain range of habitat loss, host can counterbalance the positive and negative effects, and shows a rising tendency.(9) The epidemic is more likely to break out in the prey-predator system if only a small amount of habitat loss.(10) A highly aggregated distribution of species is a common behavioral strategy when dealing with habitat loss or other environmental stresses.(11) The parasite-host/prey-predator eco-epidemiological systems have the similar mechanism with the intraguild predation systems, and the predator acts as the intraguild predation, the infected prey acts as intraguild prey, and the susceptible prey acts as shared resource.(12) Species at the highest trophic level are no longer affected the most by habitat loss, which depend not only on the biological mechanism but also on the external environmental disturbances.

随着邻体数目的增加,病毒的感染力度变得更大而且在空间上形成聚集的波形;(5)生境破坏及其空间结构在一定范围内有利于疾病的控制,这暗示人为对生境的干扰可作为疾病控制的一个潜在方法;(6)生境破坏的数量以及不同类型生境的空间分布格局都显著地影响了寄生病毒的入侵和传播,生境破碎化程度越高(高丧失斑块的数量或低聚集程度),将越有害于病毒的入侵和传播,这暗示了空间异质性是否有益于物种的入侵依赖于所考虑的生态过程;(7)由生境破坏引起的空间异质性的两个组分之间存在负偶联关系trade-off(8在适度的生境破坏范围内,宿主种群能够平衡生境破坏带来的正负两种效应并呈现增长趋势;(9)在捕食-食饵系统中,寄生感染病毒极有可能在生境破坏量较低时爆发;(10)物种在面临生境破坏或者其它环境压力时表现出更高的聚集分布策略;(11)寄生-宿主/食饵-捕食生态传染病系统与共位捕食食物网结构具有相似的生物机制,其中捕食者扮演共位捕食者的角色,已感染食饵作为共位食饵,易感染食饵扮作共同消耗的资源;(12)位于最高营养级水平的种群对生境破坏的响应不一定是最敏感的,这不仅依赖于内在的生物机制同时也依赖于外在的环境干扰。

As an important constituent of the city space resources,The underground spatial resources takes for the various countries and performs to synthesize plans and Utilization, the city underground space utilization has the broad prospect,We should grasp and control the city underground space resources, Which displays it in the society, the economy, the environment and so on various aspects benefit, this also is an important way to realize the city a long-enduring development.

地下空间资源作为城市空间资源的一个重要组成部分,越来越为世界各国所重视并加以综合规划和发展利用。城市地下空间利用有广阔前景,掌握并控制城市地下空间资源,发挥其在社会、经济、环境等各方面的效益,也是实现城市可持续性发展的一个重要途径。

In chapter 8, the complex of n-dimensional and geometry models of n+2 points are analyzed. The algorithm of high dimensional Delaunay triangulation is discussed.

第八章以四维空间为例分析了n维空间的单纯体构造和n+2个点的空间几何构型,探讨了高维空间的Delaunay三角化算法。

Variated exterior spaces, defined by the geometries of the house are generated, and create patios and transition spaces with exterior capsules existing as the smallest unit of definitive interior space.

变化的外部空间,由几何形的住宅外形定义出来,创建了一个天井,并且在现有室外空间的基础上构建出一个转换空间,作为最小的室内空间单元存在。

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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。

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。

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