查询词典 token ring

This indicates that the IE of these aza-aromatic bicyclic molecules increases with the number of the N atoms. This finding may be attributed to the nature and the N atoms in the five-membered ring.

表示因为氮原子具有较大拉电子的能力，因此五角环上具有较多的氮原子会使得分子具有较高的游离能。

Methods Eight bigeminal pregnant ewes in latter 2nd-trimester and 3rd-trimester were taken into the research of fetal cardiac intervention. Under continuous ultrasound guidance, advanced an cannula and stylet needle through the maternal abdomen, uterine wall, and fetal lamb chest wall and into the fetal LV, then imitate human balloon aortic valvuloplasty at valve ring level.

以8只中后期双胎妊娠黑山羊为研究对象，在超声引导下经皮/子宫穿刺胎羊左心室，并在主动脉瓣水平模拟人类主动脉瓣球囊扩张术，从而建立胎儿宫内心脏介入手术动物模型，从动物准备、术中胎羊体位、穿刺部位选择、介入技术要领、超声使用、胎羊保温、胎盘脐带保护等方面进行探讨总结。

Bilboquet, Ring and pin or Kendama.

比尔博凯，戒指和针或剑玉。

The invention comprises a cyclopalladated catalyst with axial chiral binaphthyl backbone containing phosphine ligand as well as the synthesis thereof, and the application of the catalyst with cyclopalladated catalyst with axial chiral binaphthyl backbone containing phosphine ligand with a similar structure to the hetero atom norbornadiene ring cleavage reaction through an asymmetric catalytic organic boron agent.

本发明包括一类具有轴手性联萘骨架含膦配体的环钯催化剂及其合成，以及其与具有类似结构的轴手性联萘骨架含膦配体的环钯催化剂在不对称催化有机硼试剂对杂原子降冰片二烯开环的应用。

The Xray diffraction analysis of the compounds (3) and (4) shows the presence of an intramolecular coordination of oxygen to the tin atom giving rise to a fivemembered ring in which the metal exhibits a distorted trigonal bipyramidal geometry.

并通过X-射线衍射测定了（3）和（4）的晶体结构，其空间群均为P2〓/c，晶胞内分子数Z=4，分子结构是以锡原子为中心金属原子、含分子内O→Sn配位键五员环的扭曲三角双锥结构，碳碳双键的两个氢是顺式构型。

Gregg and Daulton have been fast friends ever since Gregg's phenomenal comeback to win the $3,000-a-man banks ring game at the 2005 Derby City Classic and had an entertaining and blisteringly offensive bout.

格雷格和道尔顿已快速的朋友自格雷格的惊人东山再起，赢得3000美元一男子银行响的游戏在2005年德比市的经典了娱乐性和进攻性blisteringly布特。

Starting from boldine (56), secoboldine (57) was prepared by ring opening at N6 position. Then the resulting secondary amine, secoboldine (57), was treated with various substituted benzaldehydes, to form a series of diarybutanoid-like tertiary amine alkaloids.

以波尔定碱(boldine， 56)做起始物，在N 6位置做开环反应可以得到次波尔定碱(secoboldine， 57)，再用还原胺化反应在二级胺上接上不同的苯醛，可以得到一系列的三级胺生物碱化合物。

This includs Chapter Ⅳ-Ⅵ. In Chapter Ⅳ we study the maintenance of ring shapes, and obtain the same conclusions with those by Borderies, Goldreich and Tremaine (1983). But our method is much time-saving in computing.

第四章&自引力模型中的应用&，研究环形状的保持问题，得到与Borderies等(1983)相同的结论，但我们的方法节省计算时间。

Research progresses in the oganoboron π-conjugated materials are reviewed in this paper, in terms of the molecular structures of the π-conjugated systems, including the linear π-conjugated systems with boryl groups at the terminal positions, the starburst π-conjugated systems containing boron atoms at the center, the polymeric π-conjugated systems containing boron atoms in the main chain, the boron-bridged ring-fused π-conjugated systems, as well as the π-conjugated systems with boryl groups at the side positions.

本文根据π-共轭体系分子结构的不同，对有机硼π-共轭材料，包括硼取代基位于末端的线形π-共轭体系、硼原子位于中心的星形π-共轭体系、硼原子位于主链的π-共轭聚合物体系、硼原子桥联的并环π-共轭体系以及硼取代基位于侧链的π-共轭体系等的研究进展进行了综述，并进一步对该领域的发展前景进行展望。

The invention comprises the steps of dehydration reaction, purification treatment, bromization ring contraction integral reaction, separation, refining and by-product processing.

本发明包括脱水反应步骤、纯化处理步骤、溴代缩环一体化反应步骤、分离步骤、精制步骤和副产物加工步骤。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。