|
Abstract: The raining time,process,area and density of the storm resulting in the Nenjiang flood in August 1988 and its recurrence period were analyzed.The disaster data of the flood was also presented.
|
|
|
文摘:论述了形成1988年8月嫩江大洪水的降雨发生时间及过程、雨区范围、降雨强度，分析了该次洪水的峰、量组成情况及稀遇程度，汇集了灾情损失数据。 |
|
Abstract: The randomness of the single channel measurement of smoke transmissivity is decrecsed by the multichannel measuring technique.
|
|
|
文摘:多通道烟幕透过率测试技术，克服了单通道动态烟幕透过率测试随机性大的弊端。 |
|
Abstract: The rare earth-containing PSBR sheet was prepared through vinyl pyridine-SBR (PSBR) latex reacted with rare earth alkoxide, and the thermal oxidation resistance of rare earth-containing composite elastomer was studied.
|
|
|
文摘:利用稀土醇盐与PSBR橡胶乳液进行反应获得含稀土复合弹性材料进行抗热氧化研究。 |
|
Abstract: The reasons of understanding unclear to unsafe hidden danger in one's enterprise are pointed out and method and step doing hidden danger evaluation well are put forward.
|
|
|
文摘:指出了本企业对不安全隐患认识不清的原因，提出了做好隐患评估的方法与步骤。 |
|
Abstract: The recent development of coagulants and flocculent wa s reviewed.Three topics were discussed:(1)Mechanisms of coagulants and flocculen t,and the experimental methods of process study;(2)Development of coagulants and flocculent;(3)Researches on
|
|
|
文摘:分三部分论述了90年代以来国内外混凝剂和絮凝剂研究的主要进展：1)混凝、絮凝的微观机理及其行为的研究成果和实验研究手段；2)混凝剂和絮凝剂的开发；3)混凝和絮凝方法在废水处理中的净化效率的提高、条件优化和在线监控等。 |
|
Abstract: The recent progress is kinetic resolution and its applications in asymmetric synthesis are reviewed.
|
|
|
文摘:综述了光活性化合物动力学拆分法的研究进展及其在不对称合成中的应用。 |
|
Abstract: The recent progresses of the electrochemical techniques,such as direct electrolysis,indirect electrolysis and electroadsorption,for remediation of organic pollutants in water were reviewed.And the prospective research work was indicated.
|
|
|
文摘:介绍利用直接电解、间接电解和电化学吸附等方法去除水中有机污染物的研究现状，并指出今后的工作方向。 |
|
Abstract: The recent theory and design method of the magnetoelectric induction sensor in bearing field is introduced.The author provides two sensors' main technical performances and a new measurement method of the bearing and other wide frequency spectrum
|
|
|
文摘:主要介绍了国内外近些年在轴承行业开发的轴承振动测量中应用的磁电感应式传感器的原理与设计方法，并介绍了二套传感器的主要技术指标，对轴承及其它宽频谱低振幅振动量的测试提供了一套新的测试手段。 |
|
Abstract: The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.
|
|
|
文摘:扭转牙的复发是正畸临床治疗后牙稳定性的难题之一。 |
|
Abstract: The relation between the place，size，shape and number of hot spots in casting and the changes of factors such as geometry factor，physics factor，technics factor in the casting and mould system and the systematic characteristic of hot spot are stud
|
|
|
文摘:采用计算机凝固数值模拟技术，研究铸件热节的位置、大小、形状和数量，在凝固过程中根据铸件—铸型系统内几何因素、物理因素、工艺因素等各因素的变化关系，揭示热节的系统性；讨论了冒口与热节的位置关系。 |
|
Abstract: The relations between prestressed reinforcements in two directions and the total balance loading of unbonded prestressed dual concrete slabs are established in the present paper based on the analysis of projects, in which the structural cost is
|
|
|
文摘:本文在对无粘结预应力双向板两个方向平衡荷载分配方案分析的基础上，建立了以两个方向预应力筋面积与总平衡荷载的关系式，在满足极限状态、正常使用极限状态和构造要求的条件下，使结构的造价达到最佳。 |
