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- Walter jumps all over the place like a water flea. 瓦尔特跳来跳去，活象个水蚤。
- The larva is ingested by a water flea (cyclops), where it develops and becomes infective in two weeks. 幼虫通过水蚤(剑水蚤属)进入人体,在那里发育并在两周后具有感染性。
- The growth condition of ?Polypedates megacephalus? tadpoles were observed when fed respectively with algae, egg yolk, water flea and eel fodder. 以藻类、蛋黄、水氵蚤和鳗鱼饵料为饵料饲喂斑腿泛树蛙蝌蚪;观察其生长情况.
- Any of various aquatic crustaceans of the subclass Branchiopoda,such as the fairy shrimp and water flea,characterized by a segmented body and flattened,leaflike thoracic appendages. 鳃足动物一种鳃足亚纲水生甲壳类动物，如神仙虾和水蚤，特征是身体分节，具有平直叶状的胸腹附属结构。
- Any of various aquatic crustaceans of the subclass Branchiopoda, such as the fairy shrimp and water flea, characterized by a segmented body and flattened, leaflike thoracic appendages. 鳃足动物一种鳃足亚纲水生甲壳类动物，如神仙虾和水蚤，特征是身体分节，具有平直叶状的胸腹附属结构
- The water flea daphnia magna straus is a generally acknowledged standard test aquatic, and the measure of its toxicity test has been prescribed as the obligatory item by many countries. 大型蚤作为国际公认的标准试验生物,其毒理试验被许多国家定为毒性必测项目,各国纷纷建立了自己的标准方法,因此有着广阔的应用前景。
- So, for that matter, are the summer broods of water fleas. 就这点而来，夏季孵化的水蚤也是亚有性的。
- Any of various small crustaceans that resemble or move like fleas, such as the water flea. 水蚤各种长得象或行动象蚤的小甲壳类动物，如水蚤
- Any of various water fleas of the genus Daphnia, some species of which are commonly used as food for aquarium fish. 水蚤水蚤科中的一种水蚤属水生跳蚤，其中的一些种类通常用作水族馆鱼类的食物
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
- "Water fleas" are not insects but copepods, a crustacean like lobsters and crabs but extremely small. 水蚤不是昆虫而是桡脚类动物--一种甲壳虫，就像龙虾和螃蟹，但是极其微小。
- The nontoxic M.aeruginosa,however,had no negative effects on the growth of the water fleas. 无毒微囊藻虽然不影响虫体的生存,但影响其怀卵量和幼体产出。
- Water fleas Daphnia magna was fed both toxic alga Microcystis aeruginosa DS and nontoxic alga M. 用铜绿微囊藻有毒株DS和无毒株573喂养大型溞,观察微囊藻对虫体的生长和繁殖的影响。
- The nurse diluted the drug with saline water. 护士用生理盐水把药加以稀释。
- Control Efficacy of Liushi Water Flea against Mosquitoes 刘氏中剑水蚤灭蚊效果观察
- The parasites enter the body when a person drinks water containing water fleas infected with Guinea worm larvae, the young form of the worm. 当一个人饮用的水中含有被几内亚龙线幼虫（龙线虫的幼体）感染的水蚤，寄生虫就进入人体。
- Putting water in brandy is sacrilege. 在白兰地中掺水是可恶的事。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- The First "Water Flea" Factory in The Province Set-up in Ganyu 赣榆建起全省首家"产虫"工厂
- Water fleas Daphnia magna was fed both toxic alga Microcystis aeruginosa DS and nontoxic alga M. aerztginosa 573 for 7~14 days under laboratory condition. 摘要用铜绿微囊藻有毒株DS和无毒株573喂养大型溞，观察微囊藻对虫体的生长和繁殖的影响。
