| 单词 | 甲壳纲动物 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔amphipod〕A small crustacean of the order Amphipoda, such as the beach flea, having a laterally compressed body with no carapace.异脚类，端足目动物：异脚类的一种小甲壳纲动物，如滨海的水蚤，体侧扁，无甲壳美国传统〔berry〕The small, dark egg of certain crustaceans or fishes.动物卵，鱼卵：某种甲壳纲动物或鱼的小且暗色的卵美国传统〔brachyuran〕Of or belonging to the Brachyura, a group of crustaceans including the true crabs, characterized by a short abdomen concealed under the cephalothorax.短尾亚目的：短尾亚目的或属于短尾亚目的，甲壳纲动物，包括真蟹，特征是腹部很短，隐藏在头胸部下方美国传统〔cephalothorax〕The anterior section of arachnids and many crustaceans, consisting of the fused head and thorax.头胸部：蛛形纲动物和许多甲壳纲动物身体前部头胸合一的部分美国传统〔chela〕A pincerlike claw of a crustacean or an arachnid, such as a lobster, crab, or scorpion.螯：如龙、虾、蟹或蝎等甲壳纲动物蜘蛛纲动物的钳样爪美国传统〔crab〕Any of various similar related crustaceans, such as the hermit crab or the king crab.寄居蟹：任一种与其类似的甲壳纲动物，例如寄居蟹或蜘蛛蟹美国传统〔crust〕The hard outer covering or integument of certain plants and animals, such as lichens and crustaceans.甲壳：某些植物或动物的硬的外层覆盖物或包裹物，如地衣和甲壳纲动物美国传统〔decapod〕A crustacean of the order Decapoda, such as a crab, lobster, or shrimp, characteristically having ten legs, each joined to a segment of the thorax.十足目动物：十足目的甲壳纲动物，如螃蟹，龙虾，或虾米，其特征是有十足，每一足都与身体中间一节的部分相接美国传统〔ecdysis〕The shedding of an outer integument or layer of skin, as by insects, crustaceans, and snakes; molting.蜕毛，蜕皮，蜕化：脱去一层外壳或皮层，如昆虫、甲壳纲动物和蛇的蜕皮；蜕毛美国传统〔ecdysone〕A steroid hormone produced by insects and crustaceans that promotes growth and controls molting.蜕皮激素：昆虫和甲壳纲动物产生的类固醇激素，以促进生长，控制蜕皮美国传统〔entomostracan〕Any of various small crustaceans formerly constituting the subclass Entomostraca.切甲类甲壳类动物：指任何原属于切甲亚纲的小型甲壳纲动物美国传统〔krill〕The collection of small marine crustaceans of the order Euphausiacea that are the principal food of baleen whales.磷虾：磷虾目中小型海洋甲壳纲动物的总称，是长须鲸的主要食物美国传统〔maxilliped〕One of the three pairs of crustacean head appendages located just posterior to the maxillae and used in feeding.（甲壳动物的）颚足，颚肢：位于甲壳纲动物的上颔骨后面的三对头部附属器官，用于喂食美国传统〔ostracod〕Any of various minute, chiefly freshwater crustaceans of the subclass Ostracoda, having a bivalve carapace.介形亚纲动物：属介形亚纲的任一种体小的、主要生活于淡水中的甲壳纲动物，长有一对硬壳美国传统〔phyllopod〕Any of various branchiopod crustaceans having swimming and respiratory appendages that resemble leaves.叶足亚纲甲壳动物：一种鳃足类甲壳纲动物，具有象叶子的游水和呼吸的附肢美国传统〔prawn〕Any of various edible crustaceans similar to but larger than the shrimps.对虾：一种类似于虾但比虾大的可食甲壳纲动物美国传统〔shrimp〕Any of various similar crustaceans, such as certain isopods and amphipods.甲壳类的小生物：一种类似的甲壳纲动物，如某些等足目动物及端足目动物美国传统〔tail fin〕A fin at the posterior part of the body of a fish, crustacean, whale, or other aquatic animal.尾鳍：鱼、甲壳纲动物、鲸或其它水生动物身体后部的一个鳍美国传统〔uropod〕One of the last pair of posterior abdominal appendages of certain crustaceans, such as the lobster or shrimp.尾足，尾肢：某些甲壳纲动物（如龙虾和褐虾）腹股最后面的一对足中的一只美国传统〔xylophagous〕Destructive to wood, as certain crustaceans or fungi.蛀木的：对木头有破坏性作用的，如某些甲壳纲动物或真菌美国传统〔zoea〕A larval form of crabs and other decapod crustaceans, characterized by one or more spines on the carapace and rudimentary limbs on the abdomen and thorax. 蟹幼体：蟹和其它十足目甲壳纲动物的幼虫形式，其特点是在其背甲上有一个或多个脊椎，而且在腹部和胸部有一个或多个未发展完全的肢体美国传统 |
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