Suddenly, there was a great splashing sound and the oyster closed his shell and very quickly kept quiet. 突然,传来一声巨响,溅起无数水花,牡蛎马上合上壳,不作声了。
Before the snipe drew back its beak, it was gripped tightly inside because the clam suddenly felt a sharp pain and closed its shell quickly. 在鹬倒退它的鸟嘴之前,因为蛤突然很快地感觉一种锐利的痛苦而且关闭了它的贝壳,所以它紧紧地被抓紧进。
The symmetrical bi-cylindrical structure is a closed shell composed by two unclosed arch shell. 该结构是由两个对称非闭合大弧度圆弧横截面柱壳对接而成的闭合柱壳结构(简称“双圆弧柱壳”);
This article discusses the dynamic computation of the closed cylindrical shell under impact load. 本文讨论闭合圆柱形壳体在冲击荷载作用下的动力计算。
Particle-Hole Spectra about Double Closed Shell 双满壳层附近原子核的粒子&空穴能谱
All the alkali metals have a single s-electron outside a closed shell. 所有的碱金属都在闭合壳层之外有一单个S电子。
Some Problems for Dynamic Computation of Closed Cylindrical Shell Due to Axial impact Load 闭合圆柱壳在轴向冲击荷载下的某些动力计算问题
Photoionization Calculations for the Outermost Closed Shell of Alkali Metal Atoms 碱金属原子光电离截面的计算
Thermal stresses for a closed laminated thick cylindrical shell 层合闭口厚柱壳的温度应力
A new method to calculate interior sound field of arbitrary-shaped closed thin shell 任意形状封闭薄壳内部声场计算的一种新方法研究
Nuclei with closed-shell have spherical symmetries. 闭合壳层的核具有球对称性。
Experimental study of dieless hydro-bulging near-soccer shape closed shell 近足球形封闭壳体无模液压胀形的实验研究
The Orthogonality of Wet Modes in a Closed Spherical Shell Immersed in Deep Water and Its 水中封闭球壳湿模态的正交性及其应用研究
The method in this paper, which can be used to calculate the interior sound field of arbitrary-shaped closed thin shell ( equal or unequal thickness), suits a large scope. 本文所提出的这一方法适用面广,可以求出任意形状封闭薄壳(等厚度或不等厚度)的内部声场。
Interface Features of Shell and Closed-shell-muscle 壳与闭壳肌的结合界面研究
Our calculation shows that, take the HFS model as zeroth order approximation instead, successful many-body calculation on the ground state property of closed shell atoms can also be made. 计算表明,以HFS模型为零级近似,对闭合壳层原子基态亦可成功地进行多体计算。
Weak solutions are obtained for closed composite continuous cylindrical shell of arbitrary thickness under thermal and mechanical loads. 在轴对称情况下,建立了连续闭口柱壳的热应力混合方程,给出了任意厚度连续柱壳在热荷载和机械荷载作用下的弱形式解。
By the method of weighted residuals the reliability of the unstability of the closed cylindrical shell with both ends built-in is calculated. Results show the validity of the present method. 在加权残值法计算的基础上,进行了两端刚固的闭合圆柱壳失稳的可靠性计算,表明了该方法的有效性。
Damping prediction for BBD controlling vibration of closed cylindrical shell BBD控制封闭圆柱壳振动的阻尼预估
The present paper treated some of the problems for dynamic computation of closed cylindrical shell due to an axial impact load, including the calculations of the dynamic stresses and the problems of stability. 本文讨论了闭合圆柱形壳体在轴向冲击荷载作用下的某些动力计算问题,其中包括动应力的计算和稳定性问题。
Analysis of membrane forces within closed cylindrical shell subjected to internal hydraulic pressure 流体内压作用下封闭筒壳内力分析
A modified EHMO theory ⅰ. the potential curves of closed shell homonuclear diatomic molecules of hydrogen, alkali metals and second periodic elements 改进的EHMO理论&Ⅰ.氢、碱金属和第二周期元素闭壳层同核双原子分子位能曲线
Study of weak formulation of thermal stresses for closed laminated continuous cylindrical shell 叠层连续柱壳热应力问题的弱形式研究
On Vibration Response of the Closed Cylindrical Shell 封闭圆柱壳振动响应特性研究
The calculated values of potential curves of the closed shell homonuclear diatomic molecules of the hydrogen, alkali metals and second periodic elements are listed, the equilibrium distance and the dissociation energy thus obtained are in good agreement with the experimental values. 文中列出了氢、碱金属和第二周期元素闭壳层同核双原子分子的位能曲线计算值,得到的平衡核间距和解离能数值与经验值符合良好。
Design and Optimization of Closed Impeller and Shell for Sewerage Pump 闭式污水泵叶轮与泵体的水力设计及优化
Torsion of Closed Thick Toroidal Shell 闭合厚环壳的扭转
Giving up any assumptions about displacement models and stress distributions, based on Refs. [ 1] and [ 2] and quoting δ-function into the present study, the state equation for the axisymmetric problem of thick continuous closed cylindrical shell is established. 抛弃任何有关位移或应力模式的假设,在文献〔1〕、〔2〕的基础上,引入δ-函数,导出连续闭口厚圆柱壳轴对称问题的状态方程;
If the NNN adatom-adatom interaction is repulsive, e.g., on Au ( 001) surfaces, the closed square or quasi-square shell is always persisted and thus the magic number sequence is always kept. 在Au(001)表面,次近邻相互作用为排斥,封闭的正方形结构及其具有的稳定性能够一直保持,幻数序列也就得以一直存在。