级别

Orange-spotted grouper is a benthic protogynous marine fish with sex inversion. It is one of the most important culturing fish in the southeast of Asia. As in other vertebrates, its growth is mainly controlled by growth hormone . Few data are available concerning the regulation of GH in grouper. In this paper, the regulation of growth hormone release from pituitary of orange-spotted grouper and its mRNA level was determined by radioimmunoassay and RNase protection assay.

中文题名斜带石斑鱼生长激素分泌及其基因表达调控的研究副题名外文题名 Regulation of growth hormone and its gene expression in orange-spotted grouper，Epinephelus coioides 论文作者冉雪琴导师林浩然学科专业水生生物学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数140页关键词生长激素基因表达石斑鱼馆藏号BSLW /2003 /Q959 /39 应用分子克隆技术，构建了斜带石斑鱼生长激素(Growth hormone，GH)基因重组质粒，在大肠杆菌细胞中获得高效表达，亲和层析纯化斜带石斑鱼GH融合蛋白做为抗原，免疫家兔制备特异性抗体，通过酶联免疫实验、放射免疫测定、离体脑垂体静态孵育和液相杂交／核糖核酸酶保护试验及化学发光检测技术，研究了斜带石斑鱼GH分泌及其mRNA表达的调控机制，对于斜带石斑鱼的生长、繁殖、人工养殖等具有重要意义。

Three infectious bronchitis virus isolates named as Q1, J2 and T3 were isolated from proventricular tissue taken from vaccinated chicken flocks in China The biological characteristics of the three isolates were observed.

中文题名传染性支气管炎致腺胃病变毒株变异的分子基础及我国和东南亚分离株的分子流行病学研究副题名外文题名 Molecular basis for variation of proventriculus pathogenic IBV isolates and molecular epidemiology of IBV isolates from China and southeast Asia 论文作者蒋贻海导师陈溥言教授学科专业预防兽医学研究领域\研究方向动物分子病毒学及免疫学学位级别博士学位授予单位南京农业大学学位授予日期2002 论文页码总数127页关键词鸡传染性支气管炎传染性支气管炎病毒腺胃毒株馆藏号BSLW /2003 /S855 /9 从我国接种过传染性支气管炎疫苗的幼鸡群的腺胃组织中分离得到三个传染性支气管炎毒株Q1、J2和T3，并对它们的部分生物学特性进行研究。

A little information was available about the group marriages of the Australians, who were organized in classes, and Morgan had already, in 1871, published the reports he had received concerning the punaluan family in Hawaii.

我们仅略略知道一点那种组织为级别的澳大利亚人的群婚，此外摩尔根早在1871年发表了他所得到的关于夏威夷普那路亚家庭的材料。

If the federal court system is viewed as a pyr am id, at the top is the Supreme Court of the United States, the highest court.

如将现有的联邦法院体系视为金字塔，塔顶是美国最高法院，是美国最高级别的法院。

6 HPLC or ASC grade chemicals for eluent and regenerant preparation.

4.6 使用高效液相色谱纯或美国标准委员会级别的化学试剂来制备淋洗液和再生液。

SecureOffice Trusted Gateway provides rapid, multidirectional transfer of data at various security levels — unclassified, secret, secret releasable and top secret – and among sensitive information networks.

SecureOffice信任网关在不同的安全级别提供快速，多方位数据传输——不保密，秘密，机密和绝密——之间敏感的信息网络。

Throughout its operation, Oracle automatically acquires different types of locks at different levels of restrictiveness depending on the resource being locked and the operation being performed.

根据锁定的资源和执行的操作，Oracle会自动选择锁的限制级别和类型。

Completely different crystal structures and morphology were shown in the meltdrawn films of two kinds of tacticity of sPP. A continuous conformational transform from the 〓 into the of sPP was induced by further stretching. While the zigzag conformation can retransform back to helical 〓 one after annealing above 80℃, the mechanism of conformation transform has been introduced.

Petermann教授学科专业高分子化学与物理研究领域\研究方向学位级别博士学位授予单位中国科学院长春应用化学研究所学位授予日期2001 论文页码总数114页关键词聚丙烯聚丁烯共聚物聚α-烯烃馆藏号BSLW /2003 /O632 /3 用电子显微学、电子衍射、DSC和FTIR等技术对聚α-烯烃及其共聚物的晶体结构和相转变行为进行了系统地研究，包括间同立构聚丙烯、全同立构和间同立构聚丁烯-1（iPB-1，sPB-1）、以及丙烯-丁烯-1间同立构共聚物。

"When you come into this league, there are different hurdles you need to jump over, like being a rookie learning the playbook or competing at a high level," Rucker said.

&当你加入联盟的同时，你需要克服许多不同的障碍，就像作为新秀学习进攻[2]战术或者在更高级别展开竞争。&

From sedimentary microfacies, mini-structure, fault sealing, flow units, reservoir heterogeneity, water-oil displacement experiment with real sandrock, reservoir numerical imitation and injecting and producing relation etc.

首次进行了不同开发时期储层多参数流动单元分析和建模，应用聚类分析方法提出了四级划分方案，同时提出了不同级别流动单元内剩余油的分布特征及其控制因素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。