crustacean

A hard bony or chitinous outer covering , such as the fused dorsal plates of a turtle or the portion of the exoskeleton covering the head and thorax of a crustacean .

硬壳，背甲，头胸甲一种硬骨质或甲壳质外部覆盖物，如海龟融为一体的背部板形器官，或甲壳纲动物覆盖头胸部的外骨骼部分。

The teddy bear crab is a small crustacean covered in bushy , white bristles .

泰迪型螃蟹是小型甲壳纲动物，外面覆盖着浓密的的白色毛发。

When the tide ebbs it 's a rock pool inhabited by crustaceans .

退潮时，它便成为甲壳动物居住的岩石区潮水潭。

Shrimps and crabs are only small crustaceans in the ocean .

虾、蟹不过是大海中渺小的介虫罢了。

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

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。

These crustaceans provide a valuable food source for some fish .

这些甲壳纲动物是某些鱼类重要的食物来源

The illustrious Cuvier did not perceive that a barnacle was a crustacean .

大名鼎鼎的居维叶也未看出藤壶是一种甲壳动物。

Effects of Environment Factors on Osmoregulation and Immune Parameters of Crustaceans

环境因子对甲壳动物渗透调节与免疫力的影响

Polyploid Induction and Sex Control in Several Economically Important Crustacean Species

重要水产养殖虾蟹类的多倍体诱导及性别控制研究

Control of Crustacean Plankton in Water Treatment Process

水处理工艺中浮游甲壳动物的控制

Seasonal composition of crustacean species in the East China Sea and Yellow Sea

黄、东海底栖性甲壳动物种类组成的季节变化

The Structure and Adaptation of the Compound Eyes of Crustacean

甲壳动物复跟结构及其适应性

The Sex Control Technique for Fish and Crustacean

鱼类、甲壳类性别控制的研究技术

Toxic effects of heavy metals on several marine bivalve and crustacean

重金属对几种海洋双壳类和甲壳类生物的毒性

But crustacean and fish were polluted by Pb much seriously -

甲壳类、鱼类受到Pb的污染较严重。

The Effect of Environmental Stress on the Immune Activity of Several Marine Bivalve and Crustaceans

环境污染对几种海洋双壳类和甲壳类免疫活性的影响

This percentage was significant higher than that of previous reported crustacean cDNA libraries .

这个比例高于其它任何一个已公布的甲壳动物cDNA文库。

This is the first report of a circadian clock gene from crustaceans .

这是甲壳类中报道的首个生物钟基因。

Progress on the researches of cellular and humoral immunity of crustacean

甲壳动物细胞及体液免疫机理的研究进展

Animal constituent of plankton ; mainly small crustaceans and fish larvae .

由浮游生物组成的动物；主要是小甲壳类和鱼类的幼虫。

A review on immune factors of crustaceans

甲壳动物免疫因子的研究进展

Community structure and spatial distribution of crustacean zooplankton in Lake Fuxian , Yunnan , China

抚仙湖浮游甲壳动物群落结构与空间分布

Properties , Microstructure Research and Bionics Proceeding of Nature Biomaterial of Crustacean Insect

甲壳类昆虫生物材料性能、微观结构研究与仿生进展

Every crustacean has a layer of shell , which is also called the carapace .

甲壳动物体外都有一层几丁质外壳，称为甲壳。

Crustaceans live mostly in marine but also in freshwater and terrestrial habitats .

甲壳类大多生活在海洋，但也有生活在淡水和陆上栖息地的。

Large edible marine crustaceans having large pincers on the first pair of legs .

第一对腿上有大钳子的大型可食用海生甲壳动物。

The measures of making variation , research methods and characters of genetic breeding for Crustacean were summarized in this paper .

本文总结了甲壳动物遗传育种的特点、研究方法和引起变异的措施。

Aquaculture , Biology of the Crustacean , Water Quality of Aquaculture Ponds .

水产养殖，甲壳类生物学，养殖池水质。

Minute crustaceans forming food for right whales .

作为露脊鲸食物的微小的甲壳动物。

The question is , of course , whether this small crustacean are fed properly using standard fish feed .

问题是这小甲壳动物能否使用标准鱼饲料来喂养。