查询词典 trans-Siberian

In contrast, the conformer with trans-trans arrangement is unstable and the energy is higher.

反之，完全采用trans-trans排列的旋转异构体构象能量较高，不稳定。

For 2,2,4,4-tetrachloropentane,the energy of the conformer with gauche-gauche arrangement is lower; For 2,2,4,4,6,6-hexachloroheptane,the conformer with trans-gauche-trans-gauche arrangement is stable.

结果表明，对于2，2，4，4-四氯戊烷，采用gauche-gauche排列的旋转异构体的能量较低；2，2，4，4，6，6-六氯庚烷旋转异构体中，采用trans-gauche-trans-gauche排列的构象能量较低。

The flexible H〓bta triacid ligand in this work was demonstrated to form 1D polycatenaned ladder (15) with cis, trans, trans.

柔性羧酸配体采用cis，trans，trans构象，形成了一维梯状聚索烃（15）。

Chapter 2 has analysized the conversly synthetic means of solanesol and designed novelly synthetic routes of solanesol and key intermediate Chapter 3 has summarized the preparation of trans-3-methyl-4-hydroxy (bromo-2-butenyl oxy methyl benzene In chapter 4 ,a novel technology of important intermediate(all trans-8-bromo geranyl acetate),which is suitable for industrial procedure , was found .meanwhile,an another new way has been invented ,of which the key intermediate (all trans-8-hydroxy geranyl acetate) has been produced.

第二部分分析了茄尼醇的逆合成方法，设计了一条适合于合成茄尼醇的合成路线及其重要中间体的合成路线。第三部分研究了重要中间体[Trans-3-甲基-4-羟基-2-丁烯基乙酰基(苄基，2，3-二氢吡喃基)醚]的合成新方法，找到了一条适合于工业化生产的制备反式-3-甲基-4-羟基-2-丁烯基苄基醚的新方法。第四部分研究了重要中间体[-3，7-二甲基-8-羟基-2，6-辛二烯-1-醇乙酸酯、-3，7-二甲基-8-溴-2，6-辛二烯-1-醇乙酸酯]的合成新方法，找到了一条适合于工业化生产的制备它们的新方法；同时研究了一条制备-3，7-二甲基-8-羟基-2，6-辛二烯-1-醇乙酸酯的另一新方法。

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电泳转印槽组件 1。缓冲液槽及带有电缆的盖 2。凝胶支架转印夹 3。纤维衬垫 4。电极丝 5。电极板 6。特级冷却芯 Trans-Blot 转印槽是功能灵活的转印设备，可理想地用于多种转印应用。Trans-Blot 转印槽特点包括：*能进行多胶转印，可容纳3 块PROTEAN I xi 凝胶、6块Criterion 凝胶、12块Mini-PROTEAN 3 或Ready Gel 预制胶*多组参数灵活可设，可调节的电压设置（从30 V 的过夜转印到200 V 的1 小时快速实验）*电极间距设置为8 cm 用于标准印迹杂交，或设置为4cm 用于高强度印迹杂交*可选择板式电极：涂有铂金的钛作为正极，不锈钢为负极，能提供高强度电场和比其它电极更高的电流密度。或选择较经济的铂金电极丝*通过特级冷却芯和水循环仪来调节温度―是天然酶（4°C）或高强度转印的理想选择，随着转印时间增加（多达24 小时），不会引起缓冲液耗竭（在高强度转印中必须使用冷却芯，也推荐用于所有板式电极的应用）*带铰链的凝胶支架转印夹能避免滑动，确保凝胶与印迹膜间的紧密接触；每个转印夹都有颜色标记以保证在转印槽中的正确定位 Trans-Blot 转印槽的锁闭凝胶支架转印夹系统。转印夹（1）支撑凝胶（2）印迹膜（3）两侧有纤维衬垫和滤纸（4）确保凝胶三明治内的完全接触。凝胶夹垂直插入缓冲液槽中（5）。

The intramolecular hydrogen bonding energies for some special systems were evaluated by means of the substitution method, cis-trans method, and supermolecular approach. The intramolecular hydrogen bonding energies predicted by the substitution method agree well with the values obtained by the cis-trans method and the supermolecular approach.

对一些特殊体系，使用取代法，cis-trans方法和超分子方法计算了氢键键能，取代法计算得到的氢键键能与cis-trans方法、超分子方法的计算结果相符。

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转印条件可调，能在很大的分子量跨度上获得最佳转印效果*耐用的板式电极能产生强大而均一的电场，而且电极在槽内的位置灵活可换；不论运行1、2 或3 个转印夹，电极间距可调节到最小以获得最大的场强和转印效率*凝胶支架转印夹保证整个凝胶与印迹膜表面的均衡接触*转印夹的铰链设计能防止凝胶滑动，便于转印夹组装*颜色标记的转印夹及电极板确保在转印槽内的正确定向*特级冷却芯和冷却水循环器进行温度调节―可理想地用于天然酶或高强度转印，或用于延长转印时间时减少缓冲液的损耗*可选择的组装盘是凝胶三明治和转印夹组装的理想选择 Trans-Blot Plus 转印槽能从单向和双向大格式凝胶上均一、高效地转移蛋白―配合使用新推出的 PowerPac HC 电源，多数蛋白都可在1530 分钟内完成转印。

The target molecules were synthesized through a Sonogashira coupling reaction of 1-trans-4-(trans-4-n-pentylcyclohexyl)cyclohexylacetylene and 4-iodo-2,3-difluoro- phenyl ether with total yields of 27%～28%.

目标化合物采用1-trans-4-(trans-4-正戊基环己基)环己基乙炔与4-碘-2，3-二氟苯基醚进行Sonogashira偶联反应制备，反应总产率27%～28%。

Similarly, HMPA has theability to markedly affect the stereoselectivity of the tandem reaction.β-Aminoketones can be generated with high stereoselectivity (the ratio of trans-anti andtrans-syn is up to 94/6) when 4 equiv. of HMPA was used as the additive in THF.

其次，我们以二乙基锌来引发串联反应，发现HMPA对反应的选择性同样产生显著的影响，并通过在反应体系中加入4当量的HMPA，高立体选择性地得到了β-氨基酮类化合物(trans-anti／trans-syn一般为94／6)。

METHODS: After a single ip dose of trans-T hydrochloride or Ml, the rats were killed by decapitation. A high performance capillary electrophoresis method was used to determine the concentrations of enantiomers of trans-T and Ml in the serum and different brain tissues, including cerebrospinal fluid, cerebral cortex, corpus striatum, hypothalamus, cerebellum, and medulla oblongata.

大鼠ip单剂量的盐酸trans-T或Ml后，采用高效毛细管电泳法测定血清和不同脑组织中trans-T及Ml对映体的浓度，脑组织包括脑脊液、大脑皮层、纹状体、下丘脑、小脑、延髓。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。