头足类

A cross-section of a nautilus shell in Boston shows the spiral of chambers, called camerae, that this cephalopod builds for itself as it grows.

意译：一个十字形的断面是鹦鹉螺外壳在波士顿展出的窝的螺旋，命名为照相机，那是头足类动物修建为它自己如同它的成长。

Nautilus Shell A cross-section of a nautilus shell in Boston shows the spiral of chambers, called camerae, that this cephalopod builds for itself as it grows.

意译：一个十字形的断面是鹦鹉螺外壳在波士顿展出的窝的螺旋，命名为照相机，那是头足类动物修建为它自己如同它的成长。

Its color can effect the beautiful decorative materials; black can be a touchstone; some can also be used jade. 2, in gemology, the corner stone with a limited angle word meaning rock, and sometimes also used to refer to Bristol stone or flint.3, angular stone, the middle finger in paleontology is a kind of fossil cephalopods name.

其色彩美丽者可作用装饰材料；黑色者可作试金石；有的也可用于玉雕。2、在宝石学中，角石一词具有不限于角岩的含义，有时也用于指碧石或燧石。3、角石，在古生物学中指的是一种头足类动物的化石名称。

Cephalopods are a group of diverse, highly developed marine molluscs, which play an important role in ocean fisheries.

头足类是一类较为高等的海产软体动物，在海洋渔业中占有重要地位。

The determination of the stratigraphic age of the Lower Silurian low－grade metamorphic clastic rocks was mainly based on trilobites, corals and cephalopods, but no evidence of microfossils has been found.

早志留世轻变质碎屑岩地层时代的确定主要依据三叶虫、头足类和珊瑚等大化石，一直没有微体化石方面的证据。

Widely distributed fast-moving ten-armed cephalopod mollusk having a long tapered body with triangular tail fins.

广泛分布的十肢头足类动物，游动迅速，身体长而尖，有三角形尾鳍。

Cephalopods become one of the most important commercial marine resources worldwide.

头足类在近年变成了重要的世界性海洋渔业资源。

These cephalopods have a beak that is similar to a parrot's. The larger species are quite dangerous.

这些头足类的动物有一个类似鹦鹉的喙，大型种类的鱿鱼是相当危险的。

CEPHALOPODS: Squid catches and supplies continue to be very limited while demand on the European market is rather high.

头足类：鱿鱼的生产和供给仍然非常有限，而欧洲市场的需求量又非常大。

CEPHALOPODS: Squid prices remain at a very high level as a consequence of the very limited supplies.

头足类：由於鱿鱼的生产和供给仍然非常有限，价格还是非常高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。