The shell used the little sand to make a pearl.

The Shell-Making and Strength Mechanism of the β-Starch Shell Core On Sand

β淀粉砂壳芯成壳及形成强度机理的初步探讨

The Influence of Resin Content on the Thermal Properties of Shell Mold Sand

树脂添加量对壳型覆膜砂热性能的影响

The main dam of Qingfengling reservoir is designed as core shell sand dam, and some problems caused by construction material exist here.

青峰岭水库主坝为宽心墙砂壳坝，存在着由于筑坝材料引起的坝体质量问题。

A preliminary study on mechanical properties of shell sand from Zhujiang River mouth basin, south China Sea

南海珠江口盆地贝壳砂土力学性质初步研究

The outer coast of the tidal inlet is shell sand bar created in higher sea level period and is reformed by current hydrodynamical processes.

它的外侧海岸是在高海面时形成并被现代动力过程所切割的贝壳砂堤或砂堤。

Experimental study on durability of shell sand backfill

回填贝壳砂耐久性试验研究

Nuclear power plant containment shell is a large-volume pre-stressed reinforced concrete silo-shell structure to prevent radioactivity, and is the most important protected object in special condition.

核电站安全壳是防止放射性物质向环境释放的大体积预应力混凝土筒壳结构，是特殊环境条件下的重点防护目标。

The Design of the Containment Shell of Magnetic Drive Pump

磁力驱动离心泵隔离套的设计

Finite Volume Element Application in Containment Shell Numerical Simulation Under Blast Shock Wave

有限体积元法在安全壳抗爆数值模拟中的应用

Based on function analysis, an improvement method is put forward for bearing shell construction design. An integral machining is realized technologically.

通过分析轴承壳体的功能和作用，对轴承壳体的结构设计提出了改进方法，并从工艺上实现了轴承壳体的一体化加工。

Design of Injection Mold for the Shell Construction of Reticulated Shell Dome with Combined-Mold

壳体注射模设计杂交型屋面网壳结构的施工

Shell construction optimization of large rotary kiln with multi-supports

大型多支承回转窑筒体结构模糊优化

Main girder protective shell construction of Yamen bridge

崖门大桥主墩防撞套箱施工

Analysis of Shell Construction With Arbitrary Initial Imperfection by the Spline Weighted Residual Method

用样条加权残值法分析具有初始几何缺陷的壳体结构

The Strength Sensitivity Analysis of Ribbed Cylindrical Shell Construction Based on the Finite Element Method

带肋圆柱壳结构强度灵敏性有限元法分析带肋旋转薄壳的新型有限单元构造及编程

Application of foreign pneumatic formwork construction method in thin concrete shell construction

国外气压支模施工法在混凝土薄壳施工中的应用

This paper analyzes shell electron pair repulsion theory, valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.

对稀有气体化合物的分子结构分别用价层电子对互斥理论、价键理论和分子轨道理论进行了分析处理。

If you look at oxygen, oxygen is1s2, which is an inner shell electron.

你看，氧是1s2原子，1s轨道上是内层电子。

An element bonding parameter topological index HLA is proposed based on topological principle and valence shell electron structural character.

基于元素键参数拓扑指数原理以及镧系元素价层电子结构特征构建了一种新的拓扑指数HLA。

Photoelectron spectroscopy of inner shell electron

内层电子光电子能谱学