海樽纲
- 与 海樽纲 相关的网络例句 [注：此内容来源于网络，仅供参考]
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This paper summarizes research status and progress on classification and ecology of pelagic tunicates in China and abroad, and introduces in detail the basis of classification, current status and trends in Appendicularia and Thaliacea research.
综述了国内外浮游被囊动物分类和生态研究的现状和进展，综述介绍了有尾纲和海樽纲的分类依据、研究现状、趋势和在海洋生态系统中的作用。
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Tunicata, belonging to Urochordata, is comprised of three classes: Appendicularia, Thaliacea and Ascidiacea, with the former two being planktonic while Ascidiacea benthic.
被囊动物是一类低等脊索动物，包括3个纲：有尾纲、海樽纲和海鞘纲；全部生活在海洋里，其中有尾纲和海樽纲营浮游生活。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很，以良性病变为主。