bubble shell

1. Exploration on countermeasure of acoustic homing torpedo against bubble shell
   声自导鱼雷对抗气幕弹技术方法探讨
2. An unreasonable liquid steel flow behaviors have an effect on inclusion flotation, bubble distribution, liquid mold flux fluid capability and spreadability, shell growth, etc.
   不合理的钢液流动行为，会影响夹杂物的上浮、气泡的分布、保护渣的熔化及铺展性能、初生坯壳的形成等。
3. Conclusion Pressure-sensitivity from contrast agent is subjected to the properties of the bubble shell and the inner gas.
   结论造影剂微气泡外壳成分和内部气体的性质影响其对外周压力变化的敏感性。
4. Numerical examples show that: CSM using bubble function possesses very high accuracy and efficiency, its total DOFs are independent of the dimension of the shell and CSM is an ideal method for analysing stiffened plate and shell structures.
   算例表明，气泡函数的应用能提高有限条方法的求解精度和求解效率，求解的方程阶数与壳体尺寸无关，是一种分析加肋板壳结构的理想方法。
5. Sound scattering characteristics of a single bubble with viscoelastic shell are studied using the linear theory. And the multiple scattering characteristics of ultrasound contrast agents are calculated by the WT method.
   在线性条件下研究了单个粘弹包膜气泡的声散射特性，并用WT散射法求解了造影剂的多气泡散射特性。
6. Different wax pattern assembly design aimed at structural features of different castings can ensure convenient coating and stuccoing, favor hardening and drying of shell mold, avoid pileup of coating and bubble in shell mold.
   针对不同的铸件结构特点，采用不同的蜡模组装方案，以保证涂料、撒砂方便，有利于型壳硬化和干燥，避免涂料堆积、以及产生气泡豆等缺陷。
7. A stabilized finite element method is presented embedded with local bubble function based on the classical mixed formulation of the shell problem with free edge boundary conditions.
   针对自由边界条件壳体问题的经典混合变分模型发展局部bubble函数稳定化有限元逼近方法：逐单元附加带嵌入bubble函数的局部双线性型的稳定化法。

noun

1. marine gastropod mollusk having a very small thin shell