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natantia中文是什么意思

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用"natantia"造句"natantia"怎么读"natantia" in a sentence

中文翻译手机手机版

  • 十足目游泳亚目
  • 游行亚目

例句与用法

  • Studies on spermatogenesis and oogenesis in palaemon modestus jiang ye - qin ( chemistry department , huzhou teachers coliege , huzhou 313000 ) palaemon modestus belongs to genus palaemon , family palaemonidae , caridea , natantia , decapoda , class crustacean . lt is a kind of freshwater prawn across china and especially abounds in the taihu lake which is regarded as one of the " three delicacies " of the taiha lake . as for the researches on palaemon modestus , v / e can only refer to spermatogenesis of freshwater shrimp exopalaemon modestus ^ ruang hai - xia et al , 2001 ) , studies on reproductive biology of exopalaemon modestus l . the structure and development of the male reproductive system ( huang hai - xia et al , 1999 ) and studies on freshwater prawn in the taihu lake ( yan sheng - liang , 1999 ) . on the bases of their researches and with the help of tem , i have made further researches on sperm ultrastructure , spermatogenesis , oogenesis and mature oocyte ultrastructure in palaemon modestus
    秀丽白虾palaemonmodestus属甲壳纲crustacea十足目decapoda游泳亚目natantia真虾部caridae长臂虾科palaemonidae长臂虾属palaemon ,是我国南北均产的淡水虾,其中太湖产量尤其大,与太湖银鱼、鲚鱼并称“太湖三宝” 。有关秀丽白虾的研究仅见秀丽白虾雄性生殖系统的研究(黄海霞等, 1999 ) 、秀丽白虾精子发生的研究(黄海霞等, 2001 ) 。本人在前人工作的基础上,利用透射电镜技术( tem )进一步研究了秀丽白虾精子的形态、结构及精子的发生过程,同时还研究了秀丽白虾卵的发育过程,从卵原细胞到卵黄发生前的卵母细胞、卵黄发生的卵母细胞及成熟卵细胞,各期卵细胞的形态结构特点及各部分结构的变化情况。
用"natantia"造句  

其他语种

百科解释

Natantia is an obsolete taxon of decapod crustaceans, comprising those families that move predominantly by swimming ? the shrimp (comprising Caridea and Procarididea), prawns (Dendrobranchiata) and boxer shrimp. The remaining Decapoda were placed in the Reptantia, and consisted of crabs, lobsters and other large animals that move chiefly by walking along the bottom.
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