贝壳

It is, he says,"a document of the tribute system of the empire", with pieces of turquoise from mines that were over 1,000 miles apart, white teeth carved from shells found on both coasts of Mexico, and red details made out of Spondylus, a thorny oyster shell found 60 metres below the surface of the sea.

Neil MacGregor说：&这幅画表明了阿兹特克帝国的贡赋体系&，因为这幅画中，镶嵌的绿松石产自1000公里之外的地方，白牙由采自墨西哥东、西海岸的贝壳雕成，红色细部取自一种带刺的海菊蛤属牡蛎壳，而这种牡蛎生长于海面下60米深的地方。

Any of various tropical marine gastropod mollusks, especially of the genera Strombus and Cassis, having large, often brightly colored spiral shells and edible flesh.

海螺任一种热带海洋的腹足纲软体动物，尤指凤螺属和冠螺属动物，长有大的并且通常是亮色的螺旋形贝壳，肉可食用

Another, in full colour, shows a naked women standing apparently in a seashell, again with hands suggestively placed.

而另一张却完全是彩色的，一个裸体女人站在一个贝壳里，她的手也是在放在敏感位置。

Not only could obtain the predominance in nucleus suppling(a great deal of nuleus could be sufficient in supply), but also have the chance to set up or extend the shell-trade business.

不仅可以获得珠核供应方面的优势（大规格的珠核可以足量供应），还有可能在TAHITI建立或扩大贝壳贸易的经营。

Therefore, RAPD markers was used to detect genetic diversity of twenty populations of eighteen species from ten genera in Chinese Unionidae, its phylogeny were studied employing the combined analyses of RAPD markers, rDNA ITS1 sequence analysis and shell morphometrics.

为此，本研究采用RAPD技术对我国10属18种蚌类20个群体的遗传多样性进行了分析，将RAPD标记与rDNAITSl序列分析、贝壳形态度量分析相结合对我国蚌科的系统发育进行了研究。

The unproper disposal of wastes has led to the destruction of water fowl, shellfish and fishing resources.

船舶废物处理不当已造成水禽类、贝壳类动物及渔业资源的破坏。

Nearly impenetrable abalone shells, flexible and patchy butterfly wings, spider threads more rigid than steel, unwettable and self-cleaning lotus leaves, and the skin of dolphins are some examples of products of natural design prepared not by conscious manipulation but by spontaneous, self-organizing processes of nature—and still without comparable counterparts in any laboratory.

几乎坚不可摧的鲍鱼贝壳，灵活、片状的蝴蝶翅膀，比钢更硬的蜘蛛丝，具有防水和自我清洗功能荷叶，海豚的皮肤等都是一些天然设计的产品，它们的制造不是自觉的操纵，而是自然界通过自发、自行的过程来完成的，而至今任何实验室的产品也无法与其比拟。

3D processing of the measured and virtual 450 geological sites was performed by using the EVS Pro software of C-Tech Co. and then a 1280 km^2 simulated morphology of paleo-lagoon floor and chenier in the Nandagang and Beidagang in the past ~5000 yean.

应用C-Tech公司EVS Pro软件的三维技术处理实测与虚拟的450个地质点，获得了约5000年以来、面积约1280平方公里的南、北大港古潟湖底板与贝壳堤的模拟形态。

These African's kings were so bounteous to send the leechdom of zabra,giraffe,conch,ivory of elephant and rhinoceros's angle.

这些非洲国王很慷慨，他们给明朝皇帝送来了斑马、长颈鹿、贝壳、大象象牙和犀牛角药品。

On the basis of the study on a new bow rudder, the BEKE rudder , a method with the control surface to control the heeling of a submarine with the control surface caused by turning in a horizontal plane by means of variable structure control is investigated.

在一种新型潜艇艏舵——贝壳舵研究的基础上，用变结构控制方法探讨了如何用操纵面控制潜艇水平面回转时产生的横倾角，重点研究了方向舵、艏舵对横倾角的控制和艉舵对定深的保持。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。