有环的

Nodal is a novel TGF-β-like gene expressed in the mouse node during gastrulation.

在5′侧翼序列中所找到的抑制子序列中，有两茎环结构出现。

The two operating handles each had a trigger, and the graticule was a black circle.

两个操作手柄各有一个扳机，瞄准分划是个黑色的圆环。

The two operating handles each had a trigger, and the graticule wasa black circle.

两个操作手柄各有一个扳机，瞄准分划是个黑色的圆环。

Shanghai CPD Construction Product Co., Ltd is a foreign invested company with headquarter located in Canada. It markets diversified products including polymer floorings, structural grouts and cement based systems across Canada, United States of America and Europe.

上海CPD建筑材料有限公司是加拿大CPD在国内设立的子公司，在上海拥有生产基地和办事处，其主要产品包括有：聚合物地面材料、结构水泥灌浆、修补材料、混凝土硬化剂、环氧砂浆、交通承载防水材料以及相关水泥封闭剂材料等。

There are very few reports in the literature for the ring opening of epoxides with heterocyclic amines.20 These methods require high temperature and pressure.

有极少数的报告，在文献上为开环环氧化合物与杂环amines.20这些方法需要高温度和压力。

Nitrogen-containing heterocyclic compounds have a good activity not only in pesticide but also in medicine.

含氮杂环化合物不管在农药中还是在医药中，都有很好的效果。

However, the 3-and γ-positions were found to be the active metobolism sites either in vitro or in vivo, while no hydroxylate on benzene ring was detected for most of them.

但总的说来，不论在体外，还是在体内转化中，3-位，γ-位是这类化合物代谢的活性位点，而苯环上4-、5-位几乎均未发现有代谢物生成。

With the foundation of the model of intrauterine acute ischemia and reperfusion, the study about mechanism of renal injury has been initiatorily developed.

环氧化酶(Cyclooxygenase，COX)是与炎症相关的酶，在人体内有二种亚型，COX-1为结构型；COX-2为诱导型。

Liu Yakang Lu Jianmin He Jianyun Jin Guantai College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029

引言 环氧基型丙烯酸粉末涂料，通常所采用的固化剂主要有：壬二酸、癸二酸、十二二酸及二十二酸等［1］。

The extract of propolis could relieve leucocytopenia and thrombocytopenia caused by chemotherapeuant clearly.

蜂胶提取物与环磷酰胺合用有协同抗肿瘤作用，并能减轻肿瘤化疗药物的毒副作用。

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。