| 1. | Allowable value of drift angle of earthquake resistant structure 抗震结构层间位移角限值 |
| 2. | Determination of life - cycle cost function for earthquake - resistant structures 抗地震结构的服役费用函数及其建立方法 |
| 3. | In order to elucidate the mechanism of salt - resistant structure , stems and leaves of 10 species of halophytes in the coast zone of red sea were studied by paraffin slice and light microscopy 为阐明盐生植物的抗盐结构机理,采用石蜡制片和光学显微镜技术对埃及红海地区十种盐生植物的茎和叶进行了结构植物学研究。 |
| 4. | And it works out the programs for the simulation of seismic resistant structure base on matlab , and analyses some calculating examples . from the examples it summarizes several methods and laws 进而编制出基于matlab平台的线性和非线性结构地震动仿真程序,并利用该程序进行了算例分析,从中总结出若干方法和规律。 |
| 5. | It was found that in order to adjust to salinized environment , halophytes formed various characteristics of salt - resistant structure . according to functions of salt - resistant structure , it can be said to have the following 4 characteristics 发现盐生植物为适应盐渍环境形成了各种各样的抗盐结构特征,根据抗盐结构的功能,可以划分为: 1 |
| 6. | It brings forward the methods for identification of the dynamical parameter of linear structure base on nn and analyses some calculating examples , too . finally , it concludes that it is feasible that nn is applied to the simulation of seismic resistant structure 对基于神经网络进行线性结构动力参数识别进行了一些初步的探索和研究,提出了基本的思路和方法,并进行了算例分析。 |
| 7. | Comparing with salt - resistant characteristic of lospieces " halophtes experimental materials , it is found that each halophyte always bas many salt - resistant characteristics in dissimilar degrees at the same time : some salt - resistant structures commonly exist in halophyte , and some characteristics only exist in one or two halophytes , but in the same family and genus plants , it also exists obvious commonness characteristics 通过对10种盐生植物实验材料抗盐结构特征的比较,发现每一种盐生植物,往往同时具有多种程度不同的抗盐结构特征:其中有些抗盐结构在盐生植物中普遍存在,而有些抗盐结构特征只存在于个别盐生植物中,但在同科、同属植物中抗盐结构又存在明显的共性特征。 |
| 8. | The research results indicate that salt - resistance of halophytes is related to syntherical effect of many salt - resistant structure . the characteristic of salt - resistant structure is not decided by environmental factors which except salts . it indicated that salinized environment is the major factor which affect the salt - resistant formation of halophytes 研究结果表明:盐生植物的抗盐性与多种抗盐结构的综合作用有关,其抗盐结构特征与盐以外的环境因素没有决定性关系,说明了盐渍环境是影响盐生植物抗盐形态建成的主要因素。 |
| 9. | The composition , microstructure , properties and application of abrasion resistant materials such as mn steel , low alloy steel , white cast iron have been introduced in details and the wear resistant structure steel material and casting composite materials and high b casting alloy have also been reviewed 摘要详细介绍了耐磨材料奥氏体锰钢、低合金钢和白口铸铁的成分、组织、性能及其应用进展,还对耐磨钢结材料和耐磨铸造复合材料以及新开发的高硼铸造耐磨合金进行了评述,期待为科学选择耐磨材料提供参考。 |
| 10. | The use of high strength concrete in building constructions has many advantages , such as reducing sectional size of component evidently , alleviating the structure self weight and retrenchment the use of reinforcing steel bar , thus the economic benefit is distinct but the brittleness of high strength concrete causes anxious about its use in the earthquake - resistant structure 应用高强混凝土可以显著减小构件的截面尺寸,减轻结构自重和钢筋用量,具有明显优点,可获得较高的经济效益。但高强混凝土的脆性引起人们对其用于抗震结构的担心,强度等级愈高,胞性愈大。 |