gymnosperms
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美[]
- n. [植]裸子植物；[植]裸子植物类（gymnosperm 的复数）
双语例句
- 1. They include one fungus, one fern, 5 gymnosperms and 153 angiosperms.
- 其中真菌和蕨类各1种、裸子植物5种、被子植物153种。
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- 2. Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.
- 大多数被子植物的胚珠有两层珠被，而裸子植物通常只有一层。
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- 3. These genes are characterized by several distinct motifs and exist in ferns, gymnosperms, and angiosperms.
- 该类基因具有特征性基元，并存在于蕨类植物、裸子植物和被子植物中。
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- 4. Modern gymnosperms such as ferns and gingko are typically not very nutritious and are tougher to chew than angiosperms.
- 现代裸子植物，诸如蕨类植物和银杏，和被子植物相比明显的非常没有营养和粗硬。
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- 5. Based on this database, we chose the part of gymnosperms and gave a discussion to the features of its chromosomes' evolution and variation.
- 基于数据库的统计资料，我们选取了裸子植物类群对其染色体的变异和演化特征做了探讨。
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- 6. On the other hand, some deciduous gymnosperms including Ginkgoales, and the presence of growth rings in the fossil secondary wood, indicate seasonal changes.
- 另一方面，落叶的银杏类和松柏类，以及裸子植物木化石中具有清楚的生长轮，又说明该地区的古气候存在着季节变化。
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- 7. Palaeobotany will introduce the structure and classification of Pteridophyte, Gymnosperms and Angiosperms, and introduce the evolvement phases of the Plants.
- 古植物学重点介绍蕨类植物、裸子植物和被子植物各纲的结构和分类以及植物界的演化的阶段性。
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- 8. There are 239 species under 88 families, in which 4 species are pteridophyta, 6 species are gymnosperms and 229 species are angiosperms. They can kill insects.
- 初步调查统计共有88科2 39种，其中蕨类植物4种，裸子植物6种，被子植物2 2 9种，这些农药植物均具有杀虫作用。
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- 9. He also observed that gymnosperm ovules were not enclosed in an ovary wall, leading to the establishment of one of the basic differences between angiosperms and gymnosperms.
- 他还观察到裸子植物的胚珠并不是被子房壁包围，这个发现直接导致了被子植物和裸子植物之间最根本的几点区别的建立。
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- 10. We observed and studied the forage resources to Hainan and its neighboring islets, recorded 1064 species forage plants, of which 6 seaweeds, 11 ferns, 5 gymnosperms and 1042 angiosperms.
- 根据对海南岛及周边岛屿的考察，记载可不同程度供饲用的植物1064种，其中属低等植物的海藻类6种，蕨类植物11种，裸子植物5种，被子植物1042种。
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- 11. We observed and studied the forage resources to Hainan and its neighboring islets, recorded 1064 species forage plants, of which 6 seaweeds, 11 ferns, 5 gymnosperms and 1042 angiosperms.
- 根据对海南岛及周边岛屿的考察，记载可不同程度供饲用的植物1064种，其中属低等植物的海藻类6种，蕨类植物11种，裸子植物5种，被子植物1042种。
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