1. 两栖类：什么能够在理论上阻止古代有蹄类(ungulate )进化成鲸,又有什么能阻止古代鱼类进化成两栖类(amphibian)呢?以后还要提到,化石记录提供了更多的大结构变化的证据,既有骨骼形态的,也有软组织形态的. 然而,

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2. 两栖飞机：两栖飞机 两栖飞机(Amphibian)是指可以加装或者是本身就有机轮,能够直接在陆地上操作与起降的水上飞机,这一类飞机可以视需要在水面或者是陆上机场活动,因此有两栖飞机的称呼.

3. 兩棲類動物：Amphiboids - 有两栖类动物(amphibian)的特徵的人种, 水陆两栖Reptileoids - 有爬虫类动物(reptilian)特徵的人种, 皮肤盖满鳞片Insectoids - 有昆虫(insects)特徵的人种, 皮肤有蟹壳质Sauroids - 有蜥脚类动物(sauropod)特徵的人种,

1. The purified RCABP, with a relative molecular mass of about 4370 and consisted of 22 amino acids at N-terminus, and showed low homology to the antimicrobial peptides from other amphibian origins.
    结果 两种方法提取的牛蛙皮肤抗菌肽粗提物均具有较强的抑菌活性，纯化后的多肽相对分子质量约为4370，N-端含22个氨基酸，与其他两栖类来源的抗菌肽同源性较低。

2. Irido-, herpes- and polyomavirus infections may be involved in the reduction in the numbers of endangered amphibian and reptile species.
    虹彩病毒、泡疹病毒和多瘤病毒的感染可加速濒临灭绝的两栖爬行类物种的灭绝。

3. amphibian的反义词

3. Irido-, herpes- and polyomairus infections may be inoled in the reduction in the numbers of endangered amphibian and reptile species.
    虹彩病毒、泡疹病毒和多瘤病毒的感染可加速濒临灭绝的两栖爬行类物种的灭绝。

4. Amphibian; amphibious animal; amphiphyte; amphibious plant
    两栖动物，两栖植物

5. Keywords: Leptobrachiinae; Amphibian; Phylogeny; Divergence Mechanism; Classification
    中文关键词：拟髭蟾亚科；两栖动物；系统发育；分化机理；分类

6. Blaustein: One of them is this thing called the chytrid fungus, which is a fungus that really wasn`t well known until about 10 years ago and it seems to be correlated with many of the amphibian declines especially in the tropics.
    布劳斯汀：罪魁祸首之一被称为壶菌，它是一种似乎与许多种两栖类动物大量死亡——尤其在热带——有关的真菌，我们近十年才开始对这种真菌有较深的了解。

7. amphibian

7. This paper had reported the results of investigation of amphibian resources and fauna characterization, which revealed 21 species or subspecies of amphibia(belonging to 11 genera, 7 families and 2 orders) in this reserve.
    报道了黑石顶自然保护区两栖动物资源和区系特征的调查结果。已知有21种11属7科2目。

8. That is why in September 1932 the 4-ton light tank, the amphibian tank and a tractor of Carden-Loyd were demonstrated in Poland.
    于是，1932年9月，卡登和洛埃德的四吨坦克、水陆坦克和履带式拖车到波兰进行演示。

9. The designing of a 4-ton reconnaissance tank and an amphibian tank, sharing the same components, was commissioned the PZInz.
    波兰装甲武器测试中心在1935年命波兰工程部设计这种四吨侦察坦克和一种水陆坦克。

10. amphibian是什么意思

10. Seven of the 12 new species were discovered in unprotected areas that were once heavily forested, according to Biju and his co-author, Franky Bossuyt of the Amphibian Evolution Lab at Vrije Universiteit Brussel.
    12个新品种中的7种是在曾经有茂密森林覆盖的未保护地区发现的，据比优和他的合作者布鲁塞尔自由大学两栖动物进化实验室的弗兰克。博斯苏怀特说。

11. Anuran amphibian; androgen; arginine vasotocin; advertisement call; release call; phylogenetic development
      中文关键字：无尾两栖类；雄激素；精氨酸加压素；广告鸣叫；释放鸣叫；系统发育

12. amphibian的近义词

12. See threat category on Global Amphibian Assessment web site.
      见威胁类别的全球两栖动物评估网站。

13. Ovoviviparous amphibian of the Alps.
      阿尔卑斯山卵生的蝾螈。

14. His ultimate purpose was to create a kind of ammunition in amorphism, which was equipped with an amphibian.
      他最终的目的是创造一种无定型性弹药，用来装备水陆两用飞机。

15. 好好学单词·英语单词大全

15. A rare breed in pond fish (including four feet, belong to the scientific newts amphibian), and soft shell and all sorts of stones screw frogs and alpine butterfly.
      池中繁殖着稀世奇珍四脚鱼（学名蝾螈，属于两栖类动物），还有软壳石螺及各种蛙类和高山蝶类。

16. The studies on Bombina maxima revealed the rich molecular and functional diversity of amphibian skin secretion proteins and peptides.
      以大蹼铃蟾为代表性物种，揭示了两栖类皮肤分泌物蛋白质多肽组丰富的分子和功能多样性。

17. There are more than 730 amphibian species in Brazil, 467 of which are endemic to the region.
      在巴西有超过730种两栖动物，467种是外来地域的。

18. amphibian是什么意思

18. Environmental Protection Agency, about 40 percent of American freshwater fish and amphibian species, including this red-sided dace, are classified as being at risk.
      根据美国环境保护法，约有40％的美国淡水鱼和两栖类动物，包括这种红边鱼被认为是一种易受攻击的风险鱼类。

19. Researchers think the toad might be a victim of a devastating fungal disease that has been linked to widespread declines in the world's amphibian species.
      研究人员认为，蟾蜍可能是一个毁灭性的真菌疾病，已与世界上的两栖类物种普遍下跌的受害者。

20. amphibian的近义词

20. A tetrapod is a vertebrate with two pairs of limbs, such as an amphibian, bird or mammal.
      四足动物是一种拥有两对肢的脊椎动物，比方像两栖动物、鸟类、或哺乳动物。

1. 两栖动物
    Amphibians are animals such as frogs and toads that can live both on land and in water.

2. 水陆两用车
    An amphibian is a vehicle which is able to move on both land and water, or an aeroplane which can land on both land and water.

1. cold-blooded vertebrate typically living on land but breeding in water
    aquatic larvae undergo metamorphosis into adult form

2. an airplane designed to take off and land on water

    Synonym: amphibious aircraft

3. a flat-bottomed motor vehicle that can travel on land or water

    Synonym: amphibious vehicle

1. relating to or characteristic of animals of the class Amphibia

    Synonym: amphibious