壳

Numerical examples show that there is generally no bifurcation point in the post-buckling path, this is a distinct difference between cylindrical shells under hydrostatic pressure and those under axial compression.

计算表明，加肋圆柱壳在水压下的后屈曲路径一般来说是稳定的，这是和受轴压圆柱壳的明显区别。

Decorative coatings : each kind of hardware products bijouterie golf club heads spectacle frames mobile phone cases watchcases watchbands clocks digital cameras video camera covers water heating sanitary wares lightings presents gate locks door pulls hinges advertising signs hardware appliances penholder pen points hardware trademarks buckles and partial plastic products ceramics and glass products .

装饰膜层：各种五金制品，珠宝首饰，高尔夫球头，眼镜架，手机外壳，表壳，表带，时钟，数码相机，摄像机外壳，水暖洁具，灯饰，礼品，门锁，门拉手，合页，广告招牌，五金家电，笔壳，笔尖，五金商标，皮带扣及部分塑料制品，陶瓷，玻璃制品。

A similar structure or part, such as one that enables the valves of a bivalve mollusk to open and close .

类似铰链的装置类似的结构或部分，如使双壳类软体动物的壳张开闭合的关节

They found that the tropics are the source of most of the world's bivalve biodiversity. More than two-thirds made their first appearance there. Many then migrated to other regions.

他们发现热带是大部分双壳类的起源地，超过三分之二的双壳类在热带首先出现，其中的很多是之后迁徙到其他地区的。

Marine bivalve that bores into rock or clay or wood by means of saw-like shells.

用它锯一样的壳在岩石、泥土或木头中钻洞的海生双壳类动物。

Any of various similar or related bivalve mollusks, such as the pearl oyster.

牡蛎状双壳软体动物任何各种类似的或有关的双壳软体动物，如珍珠牡蛎

PART B As you have seen during the dissection, the three bivalves show differences in their muscles.

在解剖过程中可以观察到，这三种双壳贝的闭壳肌存在著差异

The structure and organization of mitochondrial genomes of 14 marine bivalves and two freshwater bivalves were analyzed using comparative genomics and bioinformatics methods.

利用比较基因组学和生物信息学方法，比较分析了已登录到GenBank中的14种海产双壳贝类和2种淡水双壳贝类的线粒体基因组的结构特征。

LOBSTER/CRAB/BIVALVES: Bivalve prices are increasing slightly due to a decline in offer.

龙虾/蟹/双壳贝类：由於双壳贝类的供给偏低，价格稍有回升。

After consulting relevant materials, 58 endemic species of Chinese freshwater bivalves belonging to 17 genera in 2 families were systematically sorted out, most of which belong to the family Unionidae (57 species, 16 genera).

通过查阅有关文献整理得出，中国淡水双壳类特有种计有58种，隶属于双壳纲2科17属，其中主要是蚌科的种类（16属57种）。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。