Because this would correspond to the mass element telling us how to weight the various points of our region.
相应的质量微元，就告诉了我们，区域点的权重。
The global failure criterion of rock mass element is proposed based on the analysis of releasable strain energy and is well accordance with the result of biaxial compressive test on marble.
基于可释放应变能建立岩体单元的整体破坏准则，该准则与大理岩的双压试验结果符合得比较好。
Just five years later an element with the proper atomic mass was isolated and named gallium by its discoverer.
仅仅5年后，一种具有适当原子质量的元素被分离出来，并被发现者命名为镓。
In fact, 24 per cent of our galaxy elemental mass consists of helium, which makes it the second most abundant element in our universe.
事实上，银河系中24%的元素质量是由氦组成的，这使它成为宇宙中第二丰富的元素。
Mendeleyev was bolder than Meyer and even assumed that if a measured atomic mass put an element in the wrong place in the table, the atomic mass was wrong.
门捷列夫比迈耶更大胆，他甚至认为，如果测量到的原子质量在表中把一个元素对应于错误的位置，这个原子质量就是错误的。
All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass.
给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。
By analyzing ratios of isotopes — variations of the same element with a different mass - he can learn things about the environment they lived in, such as temperature and salinity.
通过分析其中的同位素(同一种元素拥有不同的质量)比例，他可以了解这些菊石所生活的环境特征，如温度和盐度。
The hydrodynamic pressure due to the coupled vibration is studied with Boundary Element Method, and the simplified formula for the attached mass matrix is derived.
运用自编边界元程序计算了闸门扰动时动水压力的分布，进而推导了附加质量阵的简化求法。
A finite element method is presented to determine the steady state elastic responses of planar mechanisms with distributed mass, operating at a prescribed input rotary speed.
本文给出了一种求解具有均布质量、恒定输入转速的弹性平面连杆机构稳态响应的有限无法。
Mass customisation means offering customers just an element of choice over certain modules or components of the product while keeping the overall design unchanged.
大规模定制意味着，仅在产品的某些模块或组件上为顾客提供少许选择，同时保持产品的整体设计不变。
The spatial concept was to present a significant solid mass that connects the entrance of the hall to the serving counter and also illustrates the roof and the walls as a continuous element.
这个设计的空间理念是呈现一个可以连接大厅入口和服务台的巨大块体，它同时还能照明屋顶和墙面，使其成为连续的元素。
The stiffness matrix, equivalent nodal load and consistent mass matrix are derived for the beam element with variable cross-section.
导出了变截面梁单元的单元刚度矩阵、单元等效节点荷载和单元一致质量矩阵。
The compound structure is verified by melting point, IR, NMR, element analysis, mass spectrum and optical rotation.
所得最终产品经熔点、核磁、红外、元素分析、质谱和旋光度分析，证明与预期结构相符。
Both the general spring coefficient matrix of flexible connector and the mass matrix of discrete element are off-diagonal.
推导出一般情形下柔性连接元的广义弹簧系数矩阵和刚体元的质量矩阵都是非对角的。
In the paper authors'll derive element stiffness matrix, mass matrix and formulas for computation of inner forces.
本文将演引组合单元刚度矩阵、质量矩阵及内力计算公式。
Firstly, the links of the plane five-bar linkage mechanism is simulated by beam element, the mass matrix, stiffness matrix of linkage mechanism and elastic dynamic model of system are established.
首先对弹性五杆机构进行有限元分析，通过机构梁单元节点位移间的关系，建立起弹性五杆机构单元质量矩阵与刚度矩阵以及弹性动力学模型。
It includes mass absorption of element itself, between elements and element at original X-ray wave length.
它包括元素本身、元素间和元素对某波长的质量吸收。
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
Based on the theory of stochastic finite element, the structural parameters of frame shear structure including stiffness and mass and damping are simulated to be stochastic variables.
以随机有限元理论为基础，将框剪结构的刚度、质量、阻尼等结构参数为随机变量。
Excavation and trace element analysis indicates: Jehol biota experienced mass mortality and rapid burial; toxic gases of the volcanic activities are the main factors of biological catastrophic event.
化石发掘和微量元素分析表明，热河生物群经历了集群死亡和快速掩埋，火山活动的有毒气体是生物灾难事件的主要因素。
The mass and trace metal element contents in the plant had to be measured in grade estimation of farm enviroment.
植株金属元素含量是农田环境质量评价中的必检项目。
In this paper, a hybrid element method is used to analyse the unsteady plane temperature field of mass concrete DAMS provided with cooling pipe.
本文应用杂交元方法对大体积混凝土坝中具有冷却水管的平面不稳定温度场进行了分析。
Chemical element is the general term for the same type of atoms with the same mass number.
化学元素是具有相同核电荷数的同一类原子的总称。
The finite element model is expressed by mass and stiffness parameters, which are determined by minimization of weighted Euclidean, norms of orthogonality conditions and characteristics equations.
有限元模型用质量和刚度参数表示，这些参数由正交条件和特征方程的加权欧氏范数取极小值来确定。
A local transmitting boundary is combined with a lumped-mass finite element technique to form a mechanical model simulating the near field steady wave motion.
本文将局部透射边界和集中质量有限元技术结合起来形成一个模拟稳态近场波动的力学模型。
Updated co-moving coordinate finite element based S-R decomposition theorem is convenient to track deformations of points in the deformed configures, to assure the mass equilibrium of element.
基于s - R分解原理的更新拖带坐标有限元法分析这类构件，有利于跟踪变形物体中各点的变化，保证单元的质量守恒。
Finite element method is used to build up element stiffness matrix and element mass matrix. After the combined total stiffness matrix and the total mass matrix are obtained.
采用有限元法建立不同管道元件的单元刚度矩阵和单元质量矩阵，最终形成管道结构的总刚度矩阵和总质量矩阵。
A virtual balancing method of a flexible rotor based on rotor dynamic and finite element method is proposed in this paper to decrease the vibrations caused by mass unbalancing.
为了有效地降低回转机械由于质量不平衡引起的振动故障，基于转子动力学理论和有限元数值分析方法，进行了柔性转子系统虚拟动平衡研究。
When a structure vibrates in water, large amount of computation will be unavoidable if the fluid finite element method is used to calculate the added water mass matrix and damping matrix.
当结构在静水中振动时，如采用流体有限元来计算流体的附加质量和附加阻尼，势必导致解题规模过大。
In this paper, a discrete local transmitting boundary is combined with a lumped-mass finite element technique for simulating steady wave motion in the viscoelastic layered medium.
本文将离散的局部透射边界与集中质量有限元方法相结合，用于模拟粘弹性成层介质中的稳态波动。
应用推荐