查询词典 elastic body

It can be concluded that, when only elastic impact is considered, the coefficient of restitution is determined by not only the material property of the target, but also the mass ratio of the colliding body to the target, and the boundary condition of the target.

结论如下：只考虑弹性碰撞时，恢复系数不仅与靶体的材料性质有关，还与碰撞物体质量比、靶体的支承条件有关，但与碰撞的初始速度无关。

The computational method and formula of elastic multi-body contact problemwith mult-contact surface by boundary element method were carried out and the correspondingfortran program was eompiled as well.

推导了多弹性体多接触面无摩擦接触问题的边界单元法的计算公式和方法，并编制了相应的FORTRAN程序。

Toward any tiny object , when we apply d'Alembert theory , we must consider stress , body force and the inertia force of elastic objects caused by acceleration .

对于任取的微元体，运用达朗伯尔原理，除了考虑应力和体力以外，还须考虑弹性体由于具有加速度而产生的惯性力。

The electronic structure, the equilibrium lattice constant and body elastic module of ScN, TiN and VN are investigated comparing with other's theoretical and experimental results.

研究了ScN、TiN和VN的平衡晶格常数和体弹性模量，并分析了其电子结构。同实验结果进行了比较，同其他人的理论结果进行了比较。

The dissertation presents a mathematical modeling approach for the high-speed flexible linkage mechanisms equipped with bonded piezoelectric sensing/actuating elements employing a mixed variational approach with Hamilton's principle in conjunction with the finite element formulation. This model includes both the terms coupling the elastic and rigid-body motions of linkage mechanisms and the terms coupling the elastodynamics and piezoelectricity of the elements, incorporating their effects upon the mass and stiffness matrices which are in general non-symmetric.

本文以国家自然科学基金资助项目《弹性连杆机构有害振动的主、被动控制及混合控制研究》（资助号：59605001）和广东省自然科学基金项目《开链及闭链机构有害振动控制研究》（资助号：970381）为依托，对高速弹性连杆机构振动的主动控制中的建模、求解、控制律的选择、作动/传感元件的优化以及实验研究等几个关键问题进行了比较深入细致的研究，取得了一些具有重要理论意义和重大实际应用价值的成果。

It is reported that after the female enters the menopause, because the ovarian function starts to decline, the secretion female, the progestogen reduced, causes the skin to have a series of changes, like some person skin elastic fibers thinning, easy to break; Some person hair becomes withered, easy to lose hair; Some people present the fixed spot or the whole body skin pruritus; Some people have the dermal sensation to be unusual, like the numbness, the needle grip or creeps; Some people present the mucous membrane to be dry, the eye is colored in the very short time endomorphism, has the dust or the sense at present; Some person nasal cavity, the oral cavity mucous membrane withers, the mouth does frequently, always wants to drink water; Some person vagina mucous membrane withers, the secretion reduces, affects the sex life quality.

据介绍，女性进入更年期后，由于卵巢功能开始衰退，分泌的雌、孕激素减少，导致皮肤产生了一系列的变化，如有的人皮肤弹力纤维变细，易断裂；有的人头发变得干枯、容易脱发；有的人出现固定部位或周身皮肤瘙痒；有的人出现皮肤感觉异常，如麻木感、针扎或蚁行感；有的人出现黏膜干燥，眼睛在很短的时间内变花，眼前有灰尘或异物感；有的人鼻腔、口腔黏膜萎缩，经常口干，总想喝水；有的人阴道黏膜萎缩，分泌物减少，影响性生活质量。

Was mainly used horsehair sofa, poultry birds, plants and other natural hair elastic material as filler, outside the velvet, embroidery, fabrics masked, to form a soft contact with the surface of the body.

当时的沙发主要用马鬃、禽羽、植物绒毛等天然的弹性材料作为填充物，外面用天鹅绒、刺绣品等织物蒙面，以形成一种柔软的人体接触表面。

The specification of a linear micropolar isotropic body requires six elastic moduli, two of which are the classical Lame's parameters.

线性微极各向同性体要求6个弹性模量，其中有两个经典拉梅常数。

The superstructure has used the model of elastical constitutive relation; the pile-group foundation has quoted the soil-pile equivalent compound model. It has been analyzed the constitutive relation for soil-pile equivalent compound which regarded as the transversely isotropic body this construction relations, and determined the corresponding elastic constant.

上部结构采用线弹性本构模型，下部群桩基础引用了桩土等效复合体模型，分析了将桩土等效复合体视为横观各向同性体的本构关系，确定了相应的弹性常数。

This structure effectively compensate for tolerance between the sleeve and the valve body and valve stem in the medium with the elastic deformation under pressure to solve the two-way valve in the transmission medium interchangeable sealing problems existing in the process.

这种结构有效地补偿了轴套与阀体之间的公差带及阀杆在介质压力下的弹性变形，解决了阀门在双向互换的介质输送过程中存在的密封问题。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。