无尾的

In addition, it was discovered that the androgen receptors were expressed in vocalization regions of the amphibians brain.

另外，在无尾类脑部与发声的相关核团中发现雄激素受体的表达。

Chapter 2: The phylogeographic researches on Anuran amphibians in the world including China are reviewed.

第二章：对国内外的无尾两栖类的系统地理学研究进行了综述。

In recent years, many toxicology studies have been carried out with anuran tadpoles in China, since they are believed to be perfect indicator species for aquatic pollution.

中文摘要：无尾两栖类的幼体蝌蚪是很好的水体污染指示物种，近年来，国内这方面的研究也越来越多。

Although there is no consistent evidence, many researchers suggested that vocal behavior of anuran amphibians were closely related to the circulating levels of sexual hormones.

虽然目前没有一致的证据，但研究结果暗示了很多无尾两栖类动物的广告和攻击鸣叫行为与其体内雄激素水平密切相关。

After lentectomy through the pupillary hole, the epithelial cells at dorsal iris in Anuran tadpole of Bufo raddei Strauch can undergo transdifferentiation to regenerate a new lens. The morphological changes of lens formation from different regeneration stages were observed with both microcope and transmission electron microscope.

以无尾两栖类花背蟾蜍后肢芽期蝌蚪为实验材料，摘除其左眼晶状体，在再生不同时期固定，石蜡连续切片，苏木精-伊红对染，光镜观察，研究晶状体再生的组织来源；另外，选再生不同时期材料用戊二醛，锇酸固定，透射电镜观察，以研究晶状体再生组织的超微结构变化。

The left lens of Anuran Tadpole - Bufo Raddei Strauch Tadpole and Xenopus laevis Tadpole were removed when they had posterior limb bud. By decapitating and fixing it with Carnoy's fixation fluid in different days, by means of paraffin serial section and Hematoxylin-Eosin stain and by using the microscope to observe the microstructure of lens regeneration of Bufo Raddei Strauch Tadpole and Xenopus laevis Tadpole. By extirpating the left eye and fixing it with aldehyde and osmium acid , by using electron microscope to observe the ultrastructure of lens regeneration of Bufo Raddei Strauch Tadpole and Xenopus laevis Tadpole.

以无尾两栖类—以花背蟾蜍与非洲爪蟾后肢芽期蝌蚪为实验材料，摘除其左眼晶状体，在再生不同时期固定，石蜡连续切片，苏木精-伊红对染，光镜观察，研究晶状体再生的组织来源；另外，选再生不同时期材料用戊二醛，锇酸固定，透射电镜观察，以研究晶状体再生组织的超微结构变化。

This weekend has no car chases or tuxedos or inspirations for cocktails.

这个周末，没有香车疾驰，没有无尾夜礼服，抑或是鸡尾酒的诱惑。

To study the way to settle the yawing and rolling stability.

研究解决无尾布局横航向稳定性的气动力措施。

The island is home to thousands of koalas, kangaroos, tammar wallabies, goanna lizards, echidnas, tiny penguins, and Australian sea lions and pelicans.

该岛栖息着数以千计的无尾熊、袋鼠、塔马尔沙袋鼠、巨蜥、针鼹蝟、小企鹅和澳洲海狮和鹈鹕。

Colleen Wood from the Southern Ash Wildlife Shelter that is caring for Sam and Bob said both koalas were doing well while other animals like possums, kangaroos, and wallabies were also starting to emerge from the debris.

南槐野生动物收容中心的工作人员柯琳伍德负责照顾珊姆和巴伯，他说这两只无尾熊复原状况良好，而其他像是袋貂、袋鼠和沙袋鼠等动物，也都开始从残骸中一一出现。

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。

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