shells的例句大全

Taking the conventional artillery as an example: the muzzle velocity of shells are subjected to various inherent factor constraints, so its projectile has a theoretical limit muzzle velocity.

比如，在常规火炮中，炮弹的初速度受到各种固有因素的限制，即弹丸初速存在一个理论上的极限速度。

In this paper, the problem of the approximate function sequences of the axisymmetric large deflection of thin shallow revolution shells are structured by the theory of integral equations, and the existance, the uniform convergence and the uniqueness are also confirmed.

本文使用积分方程理论构造了旋传扁壳的轴对称大挠度问题的逼近函数序列，证明了其解的存在性、一致收敛性和唯一性。

The dynamic buckling of shells, when subjected to a torsional impact at one end, is studied in the present paper on the theory of stress wave propagation and finite element methods.

借助于波动理论和有限元分析方法研究了圆柱壳扭转屈曲的产生机理和发生发展趋势。

The technological processing of calcium lactate from egg shells is studied.

本试验对鸡蛋壳制备乳酸钙的工艺进行了研究。

Approaches for improving the temperature index of logging tools should include enhancing materials of tool shells, improving temperature tolerance of sensors, reasonably using flasks, and so on.

提高测井仪器耐温指标的途径应包括改进仪器外壳的材料、改进传感器的温度性能、合理使用保温瓶等方面。

On the key research topics, research findings in structural analysis and design theory, stability of lattice shells, seismic behavior of space frames, and wind vibration problems of tension structures are set forth in particular. Problems that need further research are also presented.

在关键研究课题方面，着重阐述了在结构分析和设计理论、网壳结构的稳定性、空间构架的抗震性能以及张拉结构的风振问题等课题中所取得的科研成果，以及需要进一步研究的问题。

Formulation of Hybrid Model Triangular Element of Thin Shells by Tensor Analysis

用张量分析进行薄壳混杂模型三角形单元的构式

Mussel with thin fragile shells having only rudimentary hinge teeth.

壳薄而易碎的贻贝，仅有未完全发育的铰合齿。

New guns firing high explosive shells were incorporated into the battlefield

发射高爆弹的新型大炮在战场上得到了使用。

Shells were bursting all around us.

炮弹在我们四周爆炸。

Enemy forces lobbed a series of artillery shells onto the city

敌军对该城发起连串炮轰。

Thermoelasticity Analysis of Laminated Plates and Shells Using Hybrid-Stress Elements

用杂交元分析层合板壳热弹性

In this paper, a modified two-dimensional isoparametric element for curved thick shell is proposed based on reference [ 1]. Using the element, geometric nonlinear analysis of laminated composite shells of revolution subjected to axisymmetric load is conducted.

本文以文〔1〕为基础，提出了一种修正的二维曲壳等参元，并用之分析了承受轴对称荷载的层会复合材料旋转天的几何非线性问题。

The courses of development and their unique features are described in a concise manner for thin shells, space grids, latticed shells, cable structures and membrane structures respectively.

简要地描述了薄壳结构、网架结构、网壳结构、索结构和膜结构的发展历程及其特点，反映了中国在空间结构所取得的巨大成就。

This paper builds the general forms of subspace variational principles of rods and shells which are taken as the controlled equations of the constitutive theories developed from the three-dimensional ( non-polar) continuum mechanics.

本文建立了杆、壳的子空间变分原理的一般形式，将它作为杆、壳的本构近似理论中的控制方程。

The nonlinear dynamical equations of axle symmetry were established by using the method of quasi-shells for three-dimensional shallow conical single-layer lattice shells.

对曲面为正三角形网格的3向扁锥面单层网壳，用拟壳法建立了轴对称非线性动力学方程。

The effect of practical prestressing on the static specialties of a kind of column-supported lattice shallow spherical shells is studied through the example of three-phase prestressing design.

以预应力三阶段设计为例分析预应力施加对柱支承扁网壳静力性能的影响。

Performance Characterization of Biological Shells under the Static/ Dynamic Three-point Bending Loads

生物贝壳在静态/动态三点弯曲载荷下的性能表征

In this paper, when the thrust acceleration is a constant, the exact explicit solution of the vacuum exterior ballistics is given with the inclination as an independent variable; and analytic formula is given with an universal form for shells, rockets and rocket-boosted projectiles.

本文用倾角θ作自变量给出了当推力加速度为常值时真空弹道的精确显式解，并用统一形式给出炮弹、火箭弹和增程弹的真空弹道解析公式。

After measuring 53 shells at random, we calculated the palaeocurrent direction, which is 294 °, with mathematical statistics method, and proved these shell members' sedimentary environment to be tidal ditch on tidal flat of lagoon.

随机测量53个壳体，经数理统计，得出古水流方向应为294°，并证明贝壳层的沉积环境为泻湖潮坪上的潮渠。