At 250 parts per million CO2, the shellfish grew vigorously, and at 750 PPM and higher they were crippled, feeble creatures with thin shells and weak connective tissues.
在CO2含量为百万分之250时，甲壳类生物生长得很好，而到了百万分之750或更高时，它们的甲壳变薄、连结物质变弱，成了残破而虚弱的生物。
A new kind of rectangle flat-shell element, GCTTRS24, for thick and thin shells was constructed.
构造了一种新的厚壳和薄壳通用的矩形平板壳元gcttrs24。
This paper gives the exact relations between strains and displacements for large deformation of elastic thin shells.
本文给出了弹性薄壳大变形时应变与位移之间的精确关系。
The paper deals with the problem of limit analysis of structures of combined axisymmetrical thin shells of revolution.
本文研究旋转轴对称组合壳体结构的极限分析问题。
Thus, the fully asymptotic expansion of the homogeneous solution within the accuracy of theory of thin shells is obtained.
这样，轴对称正交异性圆环壳的齐次解第一次有了达到薄壳理论精度的完全的渐近展开。
The calculating results show that the method of stiffness equivalence can be used for the calculation of three-layer thin shells.
刚度等效方法可以用于其它多层薄壁壳体的计算。
And this element may become a circumferential stiffening members of the stiffened thin shells of revolution in the structure stability analysis.
在结构稳定性分析中，它又可以作为加筋旋转薄壳的一个环向单元。
In this paper, large amplitude variational equation of conical shallow thin shells is derived according to the principle of minimal action quantity.
本文首先用最小作用量原理推导出扁薄锥壳大振幅的变分方程。
The basic fluid-solid interaction formulas for a shell in fluid are given using elasticity theory of thin shells and fundamental equations of fluid mechanics.
应用薄壳弹性理论及流体力学基本方程，给出了圆柱壳在流体中流固耦合问题的基本关系式。
The second approximation of the solution is of the same accuracy as theory of thin shells, and the first approximation is also sufficiently precise for engineering computation.
二次近似解达到薄壳理论所具有的精度，一次近似解也具有足够精度。
Random vibration response analysis of thin-shells excited by acoustic loads is one of the important tasks of sonic fatigue investigation.
噪声载荷作用下薄壁壳体的振动应力响应分析是声疲劳研究的重要任务之一。
Random vibration response analysis of thin-shells excited by acoustic loads is one of the important tasks of sonic fatigue investigation.
噪声载荷作用下薄壁壳体的振动应力响应分析是声疲劳研究的重要任务之一。
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