蜗牛壳呈螺旋形。

A snail 's shell is spiral in form .

这只乌贼有一个笔状的角质内壳。

This cuttlefish has a horny internal shell like a pen .

今早有十只小鸡出壳了。

Ten chicks hatched this morning .

用粗剪将龙虾壳剪成小片。

Cut the lobster shells into small pieces with heavy-duty scissors .

检验表明水生有壳动物的毒素水平提高了。

Tests showed increased levels of toxin in shellfish .

两只小鸟一出壳就离开了巢穴。

As soon as the two chicks hatch , they leave the nest burrow

雏鸟出壳后不久就不见了。

The young disappeared soon after they were hatched .

小鸡破壳而出。

The eggs hatched and the chicks matured .

这种傲慢态度成了他的保护壳。

The arrogance became his protective carapace .

煮豆荚时别加盐，因为这常会使豆壳变硬。

Do not add salt to beans when cooking as this tends to toughen the skins .

欲吃果仁者，必先破其壳。

He that would eat the kernel must first crack the nut .

把小麦的壳筛出来。

Sift out the wheat from the chaff .

乔里富组内的化石主要是双壳类和砂壳有孔虫。

The fauna in the Joli fou consists of bivalves and arenaceous forams .

葡萄糖氨是甲壳类动物帮助壳中几丁质的生成，可促进生长。

Glucosamine can help to synthesize chitin in crustacean shells , which AIDS growth .

大多数蜗牛背上有壳。

Most snails have shells on their backs .

双方意见分歧，会谈卡了壳。

With both sides having differences of opinion , the discussions came to a halt .

但数百艘船的钢壳在冰冷的北大西洋中裂开，其中12艘船裂成两半而沉没。

But the steel shells of hundreds of the ships cracked in the icy north Atlantic , and 12 broke in half and sank .

小船壳让巨浪打穿了。

The boat 's hull has been staved in by the tremendous seas .

乌龟把头缩进它的壳里。

The tortoise pulled its head into his carapace .

馅饼的壳皮常常烤得不透。

The pastry crust was always underdone .

他轻轻地搔着甲虫光滑的壳，但这只固执的甲虫就是不动。

He tickled gently at its glossy carapace , but the stubborn beetle would not budge .

在一个日益麻木不仁的世界上，我们的知觉都已生了硬痂，我们都生活在自己的茧壳之中

In an increasingly callous world , we all exist with our own carapaces of scabbed-over sensibilities .

小小的象牙壳里，盛�

In a tiny ivory cell

这套高级系统就安置在鞋尖处，配有防水防尘保护壳。

The advanced system is integrated in the front of the shoes , in a waterproof and dustproof case .

这个观点推翻了之前的理论，即小行星和彗星的碰撞纯粹是一种破坏性的过程，以为月壳是由月球内部上升的岩浆形成的。

The idea overturns previous theories that colliding asteroids2 and comets were a purely3 destructive process with the lunar crust being created by magmas rising from the interior .

他们的发现表明，月壳的大部分是在超过2300摄氏度的温度下形成的，他们说，这可能是由于外层的融化造成的。

What they found suggests large portions of the crust were formed at temperatures in excess of 2300 degrees Celsius1 , which they say , could have been achieved by the melting of the outer layer .

火点着了，蜗牛也开始感觉到热了，他们纷纷退向坚壳的深处，同时还发出“咝咝”的噪音。

for he meant to eat them . When it got well alight and the snails began to feel the heat , they gradually withdrew more and more into their shells with the hissing2 noise they always make when they do so .

N，O-羧甲基壳聚糖制备工艺的优化研究

Study on Optimization of Craft of Preparing N , O-carboxymethylated Chitosan

可再生羧甲基壳聚糖树脂的制备及对Eu（Ⅲ）离子吸附性能的研究

Preparation of Regenerated Resin of Cmcs and Study on the Eu (ⅲ) ion Adsorption Capacity on Cmcs

本机专门破碎电视机、录音机、电脑壳及PVC管材；

The machine specially broken televisions , tape recorder , electricity skull and PVC tubing .