elastic adj. 1.有弹力[弹性]的。 2.伸缩自如的,灵活的。 3.机变的,轻快的。 an elastic body 弹性体。 elastic braces 松紧吊裤带。 elastic force 弹力。 an elastic principle 灵活性的原则。 elastic ribbon 松紧带。 an elastic temperament 开朗的性格。 n. 橡皮线,松紧带,橡皮圈。 adv. -ally
medium n. (pl. -dia ) 1.媒介物;传导体;媒质,基质,介质,介体;中间物;环境、生活情形。 2.手段,方法;媒介;〔常作 pl.〕宣传工具;传播媒介〔指报刊、广播、电视等〕。 3.中间,中庸;【数学】中数,平均;【逻辑学】中名辞;【生物学】培养基,培养液;颜料溶解液。 4.女巫,降神者。 5.【戏剧】(射火灯灯前的)隔板。 6.(纸张的)中号尺寸;〔pl.〕中型轰炸机。 mass media 大众传播媒介;宣传工具。 the happy medium 中庸。 the circulating medium = the medium of circulation 通货。 adj. 中等的,中级的,普通的;平均的。 medium quality (中级)物品。 a medium bowler 【板球】(速球与缓球之间的)中球投球员。 by [through] the medium of 通过,以…为媒介。 medium of advertisement 广告媒介〔指报刊等〕。 medium of exchange 交换媒介;货币;支票。
The experimental results indicate that the tangent stress keeps quite linear relation with the variation of the time in fixed transmission distance of lcr wave in elastic range . also , the experiment results prove correctness and feasibility of the methods for measuring and processing lcr wave in stress measurement . the research provides beneficial reference for the application of tangent stress measurement in elastic media from theory to practice with tdc 实验数据表明:在试件的弹性范围内,试件内部的切向应力与lcr波在固定传播距离下的声时变化有着良好的线性关系;证明了基于tdc - gp1的测试信号处理方法在用lcr波进行切向应力测量的可行性和正确性,为弹性介质中的切向应力测量从理论研究走向实践应用提供了较高的参考价值。
In the thesis , first , the single pile dynamic impedance and the single rigid foundation one are derived in homogeneous elastic media . then , the pile - to - soil , soil - to - pile and soil - to - soil dynamic interaction factors are defined and worked out . and a simple method for calculating dynamic vertical impedance of rigidly - capped pile groups in homogeneous elastic media is developed 文中首先利用单桩和单独刚性基础在均质弹性土中的竖向动阻抗,然后定义了桩一土、土一桩、土一土动力相互作用因子的概念,并对诸动力相互作用因子作了理论推导及计算,进而建立了均匀介质中群桩竖向动力阻抗的简化计算方法。
It make the principle formula become simpler and more practical . by the attenuation regulation and distributing character of stress wave under the linear charge blasting , the paper bring forward the idea that the columniation stress wave can be regarded as cylinder stress wave , the end stress wave as spherical wave . the perfect stress attenuation formula in radical direction is established in complete elastic medium 根据条形药包爆破应力波分布特征及衰减规律,提出了可将条形药包爆破柱部应力波当作柱面波、端部应力波当作球面波处理的研究方法:建立了理想的完全弹性介质中球药包和条形药包爆破径向应力衰减方程。
Based on biphasic porous medium model of articular cartilage , this thesis regards the solid phase as isotropic linear elastic medium , the fluid phase as ideal fluid , the deformation as small , and the permeability depending on the volume strain of solid phase , and deduce out the finite element method for this nonlinear model 本文针对关节软骨两相多孔介质模型,视固体相为各向同性线弹性介质,流体相为理想流体,变形为小变形,渗透率与固体相体积应变相关,研究该非线性模型的有限元法。
Applications of the state vector method into the analysis of lamina , the current research state of piezoelectric materials and smart materials for civil engineering applications are briefly reviewed based upon literature search . solutions for axisymmetric and non - axisymmetric layered space magneto - electro - elastic media via the state vector method are investigated . axisymmetric problem : the state vector equation of transversely isotropic axisymmetric space magneto - electro - elastic media is established in a cylindrical coordinate system 本文在文献调研的基础上,简介了状态变量法在层合结构分析巾的应用、压电材料的研究现状和智能材料与结构在土木工程中的应用;探讨了运用状态变量法求解层状压电压磁弹性材料的空间轴对称问题和非轴对称问题。
In this thesis , the rock mass is treated as a continuous porous elastic medium , on the basis of the seepage field of the rock mass , the pore - water - pressure distribution in the rock mass around the tunnels is evaluated . then , the seepage - induced stresses in the rock mass is studied . based on the analysis of stress field in the rock mass around the excavation , the stresses behavior of the pressure tunnel with the internal pressure is studied using the coupled seepage - stress model 本文将围岩看作连续的透水弹性介质,从压力隧洞围岩渗流场着手,分析压力隧洞围岩中水压力分布,进而研究围岩中渗流产生的应力场,结合对隧洞围岩二次应力场的分析,探讨考虑渗流场和应力场耦合作用下围岩三次应力场特性。