查询词典 ring

Advanced production technology, quality stable and reliable, high-precision testing facilities, high-tech and fully adopted the ISO9001 quality system certification, and achieved rotation axis Lamiaceae ring, O-ring of the permit, is being QS9000 automotive Quality Management System and Auto Parts certification.

生产工艺先进，质量稳定可靠，高精度的检测设施，科技含量较高，并全面通过了ISO9001质量体系认证，取得了旋转轴唇形密封圈、O形密封圈的许可证，现正在进行QS9000汽车及汽配质量管理体系的认证工作。

We will see that a left morphic ring has many nice properties if it is simultaneously a reduced ring.

第二部分：主要研究了约化的左morphic环自身以及该环类上的模的性质。

Theorem 2.2.34 Let R be a reduced left morphic ring, then R is a left semi-hereditary ring.

定理2.2.34设R是约化的左morphic环，则R是左半遗传环。

Theorem 2.3.7 Let R be a reduced left morphic ring, then R is a right FS-ring.

定理2.3.7：设R是约化的左morphic环，则R是右FS-环。

Theorem 2.3.3 Let R be a reduced left morphic ring, then R is a right PS-ring.

定理2.3.3：设R是约化的左morphic环，则R是右PS-环。

If ring eRe and (1 - e)R(1 - e) are both left morphic rings, then R is also a left morphic ring.

如果eRe和(1-e)R(1-e)都是左morphic环，则R也是左morphic环。

Poly(ethylene-2,6,-naphthalate) is a newly developed polyester. The chemical structure of PEN can be described by replacing the benzene ring in poly with the stiffer naphthalene ring.

聚萘二甲酸乙二酯是一种近年来获得较大发展的高性能聚酯材料，其分子结构与聚对苯二甲酸乙二酯相类似，可看作是由PET链中苯环由刚性更大的萘环所替代的产物。

The conjugated rings affect the bioactivity most. Antitumor activity was greatly improved through changing the phenyl ring with a naphthyl ring.

下端共轭环对活性的影响最大，将下端的共轭环扩大的过程中，将苯环改为萘环，其活性提高了近一个数量级。

If the sapphire ring is for engagement then remember at some point the ring will be worn along side another so you do not want them to clash or for one to outstand the other.

如果蓝宝石戒指是接触，然后记得，在某一点上环会磨损沿另一侧所以你不希望他们发生冲突或一至凸现的。

Starting from 4-androstenedione, three novel 3-oxo-4-aza-5-androstene-17-oxime derivatives 7, 8 and 9 were synthesized through oxidation ring cleavage, amination ring closure, oximation,and substitution .

以4雄烯二酮为起始原料，经过氧化开环、氨解闭环、肟化、取代等4-步反应，合成了3个新的3-羰基-4-氮杂-5-雄甾烯-17肟衍生物7、8和9，并用质谱、1HNMR、13CNMR等测试手段对目标化合物的结构进行了表征

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。