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1·The objective is to observe the distribution of nerves containing neuropeptide Y in cloaca wall of Alligator sinensis.

目的是观察含神经肽 Y 在扬子鳄泄殖腔壁内的分布情况。

2·Objective:To observe the distribution of nerves containing neuropeptide Y (NPY) and substance P(SP) in cloaca wall of Alligator sinensis.

目的 ：观察含神经肽Y（NPY）、P物质 （SP）神经在扬子鳄泄殖腔壁内的分布情况。

3·NADPH-diaphorase histochemistry was used to study the distribution of NOS-positive neurons and in the cervical esophagus in Alligator Sinensis.

本实验采用还原型尼克酰胺腺嘌呤二核苷酸脱氢酶（NADPH- d）方法，观察扬子鳄食管颈段NOS阳性神经元和神经纤维的分布。

4·Objective: The patterns and characteristics about metanephric development and differentiation of Alligator sinensis were explored through observation on the histogenesis of metanephros.

目的：通过对扬子鳄胚胎后肾组织发生过程的观察，探讨其后肾发生及分化的规律和特点。

5·The liver of Alligator sinensis was formed by the endodermal epithelia invigilated from the edge of foregut door and by surrounding mesoderm during early stages of pre-natal development.

扬子鳄肝脏由早期胚胎前肠门边缘内陷的内胚层上皮和脏壁中胚层组织共同发育形成。

6·Either of two large reptiles, Alligator mississipiensis of the southeast United States or A. sinensis of China, having sharp teeth and powerful jaws .

两种大型爬行动物，美国东南部的密西西比鳄或中国的扬子鳄中一种，它们有尖利的牙齿和有力的颚部。