压缩性的

The design mainly works on many factors which effecting the volume efficiency of fracturing pump. These factors are working conditions of the pump,imbibitional valve,expulsive valve,clearance volume,sealing property, condensability of influent, liquid leakage and elastic defletion of pump cylinder. Based on these facors, we should induce the efficiency expression, famulate differential eguation and emulational mathematical model of fracturing pump.

本设计主要针对影响压裂泵容积效率的因素如：泵的工作情况、吸液阀结构参数、余隙容积、密封性能、液体的可压缩性、液体泄漏、泵缸的弹性形变等方面进行分析，在此基础上导出效率的表达式，建立微分方程，并建立压裂泵效率仿真的数学模型。

Based on the Biot s two-phase theory for fluid-saturated porous media, considering the inertia force of the solid and the liquid, and the coupling function between the solid and the liquid, and the compressibility of the liquid in allusion to the character of the nearly saturated soils. The dynamic governing differential equations are solved by Hankel transform. Then, considering the boundary condition, the dual integral equations of vertical vibration are established which are reduced to Fredholm integral equation of the second kind.

本文基于Biot两相介质动力固结理论，针对准饱和土地基的特点，考虑了流体的可压缩性，土体和流体的惯性及水土之间的耦合作用，运用Hankel变换技术求解动力控制方程，然后按混合边值条件建立起对偶积分方程，并将其化为易于数值计算的第二类Fredholm积分方程，分别研究了准饱和土半空间地基、上覆单相弹性层的准饱和土地基和准饱和粘弹性地基上刚性基础的竖向振动特性。

The challenge in reviewing this panel lies in the incompressibility of Bill's presentation, together with the poignant and often heart-wrenching cases included in the panel.

对这一讨论会的回顾的挑战是Bill的陈述的不可压缩性，而且讨论会中的个案是如此震撼且让人揪心。

This paper gives mechanical testing results of sand-gravel materials in the Liangcha river that show good compaction, high shear strength and low compression behavior. The materials in both panical grades and engineering, behaviors can meet the requirements of different parts of the dam body. And it also discribes a stlbzone in the dam body, design specification, construCtion parameters as well as embankment, slope comp...

本文对两岔河砂砾石的物理力学性能进行分析，认为砂砾石的压实性好、抗剪强度高、压缩性低，不论是颗粒级配还是工程性质均可满足坝体各分区的要求；对坝体分区、设计技术指标、施工参数以及1年来的填筑施工、斜坡碾压、砂浆固坡、质量控制等方面的具体作法，进行了全面的介绍。

Because the gas viscidity is smaller than the liquid viscidity and air is compressible, so in the same conditions, the tangental velocity and vorticity magnitude of gas is greater than liquid.

由于气体的粘性比液体的粘性小及气体的可压缩性，所以相同条件下，气流场的切向速度和旋涡强度都比液流场的强。

Finite element analysis model of 9.00 R 20 radial tire was built and the static stress－strain distribution in the contact area was analyzed.The material and geometric nonlinear properties,and the anisotropic property of composite materials as well as uncompressible property of vulcanized rubber were studied.The effects of quantity of deflection, inflated pressure and friction coefficient on stress distribution in the contacting area were analyzed.

建立了9.00R20子午线轮胎的有限元分析模型，从轮胎的材料非线性、几何非线性、橡胶帘线复合材料的各向异性，以及橡胶材料的不可压缩性等方面探讨了轮胎与地面的静态接触问题，分析了下沉量、充气压力及静摩擦系数等对轮胎静态接地面内应力应变场的影响。

The FEA model of tire structure was established based on geometric nonlinearity of tire deformation, the nonlinear contacts between tire and ground and between tire and rim under deformation, ununiformity of tire material, incompressibility and physical nonlinearity of rubber material, and the anisotropy of rubber based composites.

哈尔滨工业大学复合材料研究所，黑龙江哈尔滨150001）摘要：基于轮胎变形的几何非线性、轮胎与地面和轮胎与轮辋的大变形非线性接触、轮胎材料的非均匀性、橡胶材料的不可压缩性和物理非线性及橡胶基复合材料的各向异性，建立轮胎结构有限元静态分析模型。

The essence of ink absorption is the paper in the business card printing and membership card making ink absorption and attachment of comprehensive reflect not only the paper surface properties, porosity, compressibility, absorbent, and so on, and the composition of the innovativeink, bloodrheologyand, xerotic, and other relevant and business card printing and membership card modes, cards and membership cards to make the time pressure and nano-imprint lithography.

吸不朱性的本色是纸张在制卡和会员卡制作历程洋不差油不朱的汲取和附着的归纳反响，不仅与纸张的黑不天本能机能、孔隙率、可压缩性、吸附性等有关，还与油不朱的组不败身分、流变性和潮湿性等有关，也与制卡和会员卡制作方法、制卡和会员卡制作不压辛和压印工夫等有关。

Based on the arrangement and analysis of test datum, the engineering characteristics of the fill are studied, such as shear strength, compressibility, permeability, mechanical analysis, capillary height etc.

然后在室内土工试验数据的整理与分析基础上，对路基填土的工程性质进行了一系列深入的研究，如粉土、粘土以及一定掺灰比的灰土的抗剪强度、压缩性、毛细水上升高度、渗透性、粒径分析等。

Now, in recent years, beside of many kinds of anti-osteoporosis drugs to treat this kind of disease, also many doctors use some tiny-trauma ways to treat it, such as vertebroplasty which use needle punch through pedicles and inject bone cement into compressed vertebras, and kyphoplasty which use a balloon to lift the compressed vertebras.

目前对于中老年骨质疏松性胸腰椎椎体压缩性骨折的治疗，除了相应的抗骨质疏松药物治疗以外，近年来国内外应用微创的办法通过椎弓根穿刺注射骨水泥对难治性疼痛性胸腰椎压缩骨折进行治疗即所谓的椎体成形术2和气囊扩张后的后凸成形术3。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐