在一定程度上

These schemes are provably secure under random oracle model, and efficiently solvethe abuse of mobile agent and key exposure problem.

我们的方案能在随机预言机模型下证明其安全性，并在一定程度上解决移动代理滥用和****泄漏的问题。

We learn from II Mach., ii, 13, that at the time of Nehemias there existed a collection of books containing historical, prophetical, and psalmodic writings; since the collection is represented as unifrom, and since the portions were considered as certainly of Divine authority, we may infer that this characteristic was ascribed to all, at least in some degree.

我们从二马赫。第一，二， 13 ，在时间内赫米亚斯存在藏书含历史， prophetical ， psalmodic著作；以来收集的是派均匀，而且由于部分，被视为当然的神权威，我们可以推断，这一特点是归功于所有的，至少在一定程度上。

We learn from II Mach., ii, 13, that at the time of Nehemias there existed a collection of books containing historical, prophetical, and psalmodic writings; since the collection is represented as unifrom, and since the portions were considered as certainly of Divine authority, we may infer that this characteristic was ascribed to all, at least in some degree.

我们从二马赫。第一，二， 13 ，在时间内赫米亚斯存在藏书含历史， prophetical ， psalmodic著作；以来收集的是派均匀，而且由於部分，被视为当然的神权威，我们可以推断，这一特点是归功於所有的，至少在一定程度上。

Therefore, we selected common species of Ranunculaceae. comparative primordial plants in Alpine Meadow at Eastern QinghaiTibetan Plateau, and studied the reproductive strategies, such as reproductive allocation, especially sex allocation, to understand how the plants adapt the environmental conditions. The results showed:(1) At higher altitude, the self-incompatible plant, such as Trollius ranunculoides tended to become limited by pollination rather than by nutrient availability, while the self-compatible plants, such as Anemone rivularis and A. obtusiloba seemed not to be limited by pollen availability, which suggested that ability of self pollination for alpine plants may be a mechanism of reproductive assurance.(2) Influences induced by high altitude on the reproduction of these species occurred on different reproductive characters, which suggest species-specific adaptive strategies. The influences are dependent on plant size to some extent.

因此，我们选择在青藏高原东部的高寒草甸，以比较原始的植物类群—毛茛科植物为研究对象，选择一些常见种探讨其繁殖对策，如繁殖分配和性分配问题，试图揭示这些植物如何适应环境条件，最后的结果表明： 1高寒草甸高海拔区，自交植物(如小花草玉梅A.rivularis和钝裂银莲花A.obtusiloba)的繁殖不受花粉限制，而完全异交植物(毛茛状金莲花T.ranunculoides)的繁殖受花粉限制，表明高海拔地区植物的白花授粉能力可能是一种繁殖保障机制，能够避免恶劣环境对植物有性繁殖的不利影响； 2海拔高度对植物的影响因种而异，不同的物种受影响的繁殖性状不同，即使同属亲缘种间也存在差异，表明不同物种对相似环境压力的适应对策不同；而且，海拔高度对植物的影响在一定程度上依赖于植物个体大小，说明植物通过调整其个体大小与繁殖性状的关系来适应环境梯度的变化； 3植物花期和果期的繁殖分配并不完全随海拔升高而减小(只有小花草玉梅的果期RA随海拔升高而减小30％)，与Iwasa和Cohen的预测不完全一致(他们认为繁殖分配随生长季缩短而减小)。

In this experiment, COD removement is used as the macro-index to reflect the change of the activity of microbial indirectly and we expect to find the optimum concentration of the growth of microbial in the biological treatment system of sewage.

通过对比试验表明：(1)投加金属盐MnCl_2·4H_2O能够在一定程度上提高污水COD的去除率，在锰离子的投加量为0.5mg／L时，加药反应器COD去除率相对于对照桶COD去除率有4.3个百分点的提高。

Each Boeing 787, for example, carries approximately 40,000 lb/18,144 kg of salvageable carbon fiber.

这在一定程度上也表明了，在过去的几年里波音和空客公司为何一直参与大量有关碳纤维回收利用的研究工作。

The conditions to measure accurately and the principles to select parameters of the multi— probes EST method are proposed, and the theoretical research, computer imitation and the experiment on a machine tool prove that these principles and suggestion are necessary and effective. The influence of the initial value errors of the probes, the installation error of the probes system, and the remaining error caused by the radical error motion are analyzed quantitively on the measurement accuracy of the multi—probes EST method. The influence of the error caused by the probe's axes which is not in a plane and the perpendicularity error of the plane which the probe's axes is in to the stational axis are discussed on the measurement results.

结合理论分析，对这些EST方法进行了计算机仿真分析和研究，重点研究了这些方法的应用条件和误差分离精度，所得出的结论是：三测头法EST基本上能实现各项误差的完全分离，适于在位测量使用；二测头法在恰当地选择测头安装角的条件下，可以得到较高测量精度，适于大型零件圆度、圆柱度、径向圆跳动和全跳动的在位测量；对置两测头时域法可以在一定程度上改善单测头法测量精度，但对随机径向误差无能为力；对置两测头频域法存在严重的谐波损失。

When using the plants making landscape, we must pay attention to the plants" aesthetic feeling of aspect, discovering the modern plants making landscape and methods that it has terrene culture in some degree, and optimize the design methods of plants" aspect.

在利用植物进行造景时，注重挖掘季相赋予植物的美感，在一定程度上对具有地域文化特征的现代植物造景思想和手法进行探索，进一步完善植物季相设计的方法。

In this thesis, we find that dlg is indispensible in the establishment of anterior-posterior and dorsal-ventral polarity of drosophila oocyte. Removal of Dlg function from the posterior follicle cells using the FLP/FRT system leads to disruption of oocyte skeleton reconstruction that is elicited by the failure of those posterior cells to differentiate normally in mid-oogenesis. We demonstrate that abnormity of Notch, JAK-STAT and EGFR signal pathway in dlg mutants contributes to this aberrant differentiation. dlg null mutant also blocks the normal differentiation of two groups of anterior follicle cell-stretched cell and centripetal cell, but not border cell, with a lower penetrance. However unlike the result in posterior follicle cells, Notch and JAK-STAT signaling are both undisrupted in all mutant anterior follicle cells, implying other fate determinants may be involved.

我们的研究发现，后端滤泡细胞中的Dlg在果蝇卵子发生中期卵母细胞前后轴和背腹轴建立过程中也是必须的，PFC中dlg完全缺失型突变引起PFC的分化异常，导致卵子发生中期卵母细胞骨架重组异常，Stau、Grk等极性决定蛋白定位错误。dlg突变阻碍了Notch、JAK-STAT、EGFR等调节PFC分化的信号通路的激活。dlg突变的PFC也没有获得前端滤泡细胞命运。dlg突变不影响前端滤泡细胞群中边界细胞的分化，但是在一定程度上影响伸展细胞和向心细胞的分化，并且这种影响不依赖于前端滤泡细胞Notch或JAK-STAT信号激活的异常。

In the 1990s, with the development of economy,thruway program has become one important aspect of Shaanxi's infrastructure construction,which to some extent increase the contradiction between sustainable development and resource and environment.

20世纪90年代以来，随着经济的快速发展高速公路建设已成为陕西省基础设施的投资热点和重点，这在一定程度上加剧了经济可持续发展与资源和环境之间的矛盾，如何使高速公路建设在发展区域经济的同时，充分达到经济效益、环境效益和社会效益和谐统一，实现三者的持续健康发展是科技工作者研究的重点。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。