查询词典 rings

METHODS: The effects of these IV anesthetics on acetylcholine contraction were assessed in isolated canine pulmonary vein rings.

我们用离体的犬肺静脉检测这些静脉麻醉药对乙酰胆碱收缩的影响。

Easy removal of the bars has been the focal point for the older generation and to appeal to the younger generation a punched hole has been added to allow bars to be threaded onto the popular key-rings.

轻松的酒吧已经取消了老一辈的焦点，并呼吁年轻一代冲孔已被添加到允许酒吧被线程上流行的钥匙圈。

The pyran rings were formed in an I_2-induced heterocyclization of hydroxyl and olefin.

分别以14步反应和16步反应为-Benzylpedamide提供两条不同的不对称全合成途径。

Both the stereocenters were established facilely and high selectively, and theα-pyrone andγ-pyrone rings were constructed easily with this strategy.

整条路线简洁高效，并且很方便和高选择性的构建手性中心以及γ和α-二氢吡喃酮环。

Many of the aza quinazolines have showed potent activity, such as pyrido[2,3-d]pyrimidine, pyrido [3,2-d]pyrimidine, pyrido[4,3-d]pyrimidine, pyrido[3,4-d]pyrimidine, and pyrimido [5,4-d]pyrimidine. Moreover, the compounds that the benzene in quinazoline ring was substituted by five-member rings, such as pyrrolo[2,3-d]pyrimidine, pyrazolo[3,4-d]pyrimidine, can also inhibit the EGFR and show bright prospects.

然而喹唑啉环并非EGFR抑制剂所必须的，在随后的研究中，人们发现许多氮杂喹唑啉类也有很好的活性，如吡啶并[2，3-d]嘧啶类、吡啶并[3，2-d]嘧啶类、吡啶并[4，3-d]嘧啶类、吡啶并[3，4-d]嘧啶类、嘧啶并[5，4-d]嘧啶类，也就是在喹唑啉环的5，6，7，8-位都可以氮杂，且都有活性。

This showed that the electron density of a quinoid ring increased. The peaks of the quaternary carbon atoms of the benzene rings, which were adjacent to the quinoid ring, also shifted to higher field. But the peaks of other C atoms shifted to lower field.

NMR结果表明苯胺低聚体掺杂后主链上的电荷重新分布，环上的H原子上的电子被C原子吸引，电荷密度降低，在〓 NMR中谱峰向低场移动。C原子的谱峰也相应发生变化，醌环上电荷密度增加，全部C原子的峰向高场移动，与醌环相邻苯环受其影响季碳峰移向高场，非季碳峰移向低场。

Quint: I think that's why something like LORD OF THE RINGS works. It's giant and a huge fantasy epic, but it's grounded in some form of reality.

我像这就是为什么像指环王那样的，魔幻大戏，也要有一些实际的真实的东西在里面。

The spherical raceway of outer rings are manufactured and assembled focusing to the center of bearings.

在球面滚道外圈是制造和组装为重点的轴承的中心。

If the raddle come from your feet because of the dew, if the rings of bells upon your feet slacken, if pearls drop out of your chain, do not mind.

如果你脚上的红赭石被露水沾掉了，如果你脚踝上的铃串松弛了，如果珍珠从你的链子上脱落了，别在意。

On the single row angular contact bearings, radial load rating of bearing rings relative to each other purely radial displacement of the load of the radial component.

对单列角接触轴承，径向额定负荷为引起轴承套圈彼此相对纯径向位移的负荷的径向分量。

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。