有效

In this paper, first of all, we study the set-valued vector equilibrium problems and the set-valued vector Hartman- Stampacchia variational inequality in normed linear space.

本文首先在赋范线性空间中，研究了集值向量均衡问题和集值Hartman-Stampacchia变分不等式这两个问题的弱有效解的存在性，得到了弱有效解集的连通性和紧性结果。

1 The Government Grant and the Deed of Covenant are now good, valid and subsisting and in nowise void or violable

9.1 政府批地书及契诺契据是妥善、有效及存续有效的，并没有任何方面是无效或可使无效的

More and more attention has been paid to explore effective chemical nuclease with recognition and cleavage of DNA and the new, eff...

寻找有效的、对核酸具有识别与断裂功能的化学核酸酶以及开展抗癌药物设计、发现新的、有效的抗癌药物是我所多年来形成的主攻方向。

Its intention is to study the obscuring effect and effectual obscurant area following the formation of the smoke and to develop the examining system of Total Obscuring Power. Therefore it is possible to distinguish objects from the smoke obscuring condition and provide simulation technology, theory model and experimental platform for electronic interference.

本课题来源于齐齐哈尔建华机械研究所和国家自然科学基金重点项目(编号：50336010)的一部分，目的是研究烟幕形成以后的遮蔽能力和有效遮蔽面积，并研制全遮蔽能力检测系统，以便针对烟幕遮蔽的目标实现有效识别，为电子干扰提供仿真技术、理论模型以及实验平台。

The drainage system is one of the most power expenditure systems in the produce of the coal mine. If the drainage system is controlled effectively, and it becomes a high-performance, low-power dissipation, oecumenical, reliable system, it will economize the cost of the produce of the coal mine effectively.

排水系统是煤矿生产的耗电大户，如果有效地控制排水系统，使其高效低耗、经济可靠地运行，也是降低煤炭生产成本的有效途径。

Note that Ohm's law holds true for DC as well as for AC circuits. However

要注意，欧姆定律不仅对直流电路有效，对交流电路也同样有效。

Nepetalactone, the primary component of catnip oil, were extracted by the using method of simultaneous distillation-extraction and separated by using silica gel chromatography column. To compare the repellency of nepetalactone and DEET on mosquitoes, topical bioassay method on the skin and a cage olfactometer were employed to assess the effective protection time and the spatial repellency.

采用同时蒸馏萃取及硅胶柱层析法从猫薄荷Nepeta cataria植物中提取、分离制得驱蚊有效成分假荆芥内酯，并采用个体涂肤有效保护时间测定法及风洞空间驱避效果测试法，对假荆芥内酯与避蚊胺的驱蚊效果进行了对比试验。

From this point of view,it ispointed out that there are two kinds of commonalities among diverse prob-lems,one is the relative commonality and the other is the homogenous co-mmonality,and it is advanced that the approach to effectively make useof the relative commonality is to divide models suitably and to set up theorganic relation between models convenient to their composite conection oncondition that models are shared,and the approach to effectively make useof the homogenous commonality is from the view point of different problemsneeding their special models for solving,to convert their special modelrepresentation to comparatively general model depth representation on theprinciple of independence and share of commonality.The articles in thepast has made deep and complete research on model management in aspectssuch as model division and compositive conection,and a number of theoriesand methods are provided,but none of them is in relation to model depthrepresentation.

从这一角度出发，作者指出，在多样性问题中存在两种共性，一种是问题相关共性，另一种是问题同构共性，并提出有效利用问题相关共性的方法是在实现模型共享的前提下对模型进行合理划分和建立便于模型复合联接的各模型之间的有机联系，而有效利用问题同构共性的方法则是从不同问题求解本质上需要的专用模型出发，根据独立与共享原理，将这些专用模型表示转化成较为通用的模型深层表示，以往的文献在模型划分、复合联接等诸方面对模型管理进行了较为深入全面的研究，并从这一角度提出了许多模型表示的理论和方法，但对模型深层表示方面尚没有涉足。

According to the investigation on the local situation of aquatic vegetation in Littoral Regions of Gonghu Lake and Meiliang Bay of the Wuxi Taihu Lake, the species of aquatic vegetation, community forms and biomass were acquired. Then a contrast of vegetation distribution characteristic between the two Littoral Regions was analyzed which induced to the analysis of impact factors. In the treatments designed as varying degree oxidation intimidate, the heavy metal cadmium and the ammonia nitrogen single and compound poisons, the COD sewage cultivate, the plant growth opsonin processes, the effect of the intimidate environment on the submerged plant growth and the physiological biochemistry characteristic was analyzed. The effective method to improve the resist adversity of submerged macrophyte was discussed. The results will give a suggestion to the restoration of the submerged macrophyte, the efficiency and reconstruction in Lake Ecosystem.

通过对无锡太湖两重要湖湾贡湖和梅梁湖湖滨带沿岸浅水区水生植被现状进行调查，了解了水生植物的种类、群落组成及生物量，对两湖湾湖滨带沿岸浅水区水生植被分布特征进行了对比，并进行了影响因素分析；通过不同程度的氧化胁迫、重金属镉与氨态氮单一和复合作用、高COD生活污水胁迫培养、植物生长调节素处理，分析胁迫环境和壳聚糖各自对沉水植物生长的影响及作用机理，探讨提高沉水植物逆境抗性的有效措施；探寻沉水植物修复的理论依据和有效途径，为急待进行水生植被恢复的湖泊提供依据和建议。

It is validated that the model adopted in this article is applicable and PTCNN is reliable. The optima can be found.

经实际验算证明，对于桁架结构布局优化而言，本文所采用的布局优化模型是有效的，优化算法是有效和可靠的，可以找到令人满意的布局优化解。

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。