驻点

The influence of different substituents to the addition reaction also has been investigated to research into the reaction law.

优化得到各驻点的几何构型，通过振动分析和内禀反应坐标对过渡态进行了确认，解析了反应路径。

The axial velocity and stagnation point offset of two opposed jets coming from two asymmetric nozzles oppositely located with large separation distance were studied by using hot-wire anemometry.

采用热线风速仪对大喷嘴间距下两不对称喷嘴形成的对置撞击流的轴线速度分布和驻点偏移规律进行了实验研究。

To understand how the crystal conformer converts to the active conformer, here the internal rotation potential energy surface around the two C—N bonds in the sulfonylurea bridge of monosulfuron has been studied by density functional B3LYP method and 6-31G basis set.

应用密度泛函理论在B3LYP/6-31G水平上对新型除草剂单嘧磺隆绕脲桥部分两个C—N键的内旋转势能面进行计算，然后对势能面上的驻点进行构型优化和过渡态搜索，得到单嘧磺隆4种稳定构象和构象转换过程所涉及的8个过渡态结构。

FEB E divertor ; Puffing gas ; Stagnation density ; Detached plasma

FEBE偏滤器；喷气；驻点密度；脱靶等离子体

The cooling efficiency is higher in the areas of cooling film exit and the impingement stagnant point.

在气膜出口附近区域和冲击驻点区域冷却效率最高。

A DFT study of cyanic acid and isocyanic acid in the isomerization;2. The reaction path of isocyanic acid with carbon-hydrogen radicals CH, CH 2 and CH 3 have been investigated by using UMP2 method at 6-311g level.

在UMP2 / 6 311计算水平上，计算并讨论了碳氢自由基和异氰酸发生氢转移反应位能面上驻点的结构和分子结构变化，并依据UMP2的优化构型，进一步采用UQCISD方法对反应途径上的驻点进行了单点能量计算。

The reaction path of isocyanic acid with carbon-hydrogen radicals CH, CH_2 and CH_3 have been investigated by using UMP2 method at 6-311 g level. The geometries of the stationary points and the changes of molecular structure along the reaction path are discussed.

在UMP2/6-311计算水平上，计算并讨论了碳氢自由基和异氰酸发生氢转移反应位能面上驻点的结构和分子结构变化，并依据 UMP2的优化构型，进一步采用UQCISD方法对反应途径上的驻点进行了单点能量计算。

The extreme value of binary function at f_f_-f~2_=0 is judged by its direction derivative which follows ray starting from stable point and passing point P at every point P in noncentral neighborhood of stable point .

用驻点的去心邻域内各点P处函数沿以驻点为端点的过点P的射线方向的方向导数是否同号，来判定二元函数f在fxxfyy-f2xy=0时的极限。

Since I was stationing at various major retailer outlets, I often had to deal with unexpected situations all by myself, which in turn trained me in the areas of problem solving skills, and the ability to respond effectively.

因为是一个人驻点在各大经销商，所以常常会有很多的突发状况需要一个人马上去面对，也让我训练很好的解决问题的能力，和反应能力；驻点式的销售，所以常常会更换地点，所以也学会适应环境的能力和面对不同的经销商，懂得在客户、经销商和公司间做好最好的桥梁，做好一个协调者的角色。

Multiple-paths hydrogen abstraction reactions of fluorine -with CH_3OH have been investigated at the MP2/6-311 ++ g level. The potential energy surfaces for H-abstraction reaction from carbon atom and oxygen atom were given respectively. The results indicate that there is only one minimum energy path for hydrogen abstraction from carbon atom, while multiple paths were found for hydrogen abstraction from oxygen atom. All the stationary structures, frequencies as well as PES sketch of all channels were given, in which the dominant channel is by a five-member ring transition state. The calculated heat of reaction is 170.62 kj/mol for channel 1, 119.41 kJ/ mol for branch channel 6. The results are in good agreement with experimental data.

以MP2/6-311 ++g水平上详细研究了氟原子与甲醇抽氢反应的多通道反应机理，得到了各条通道中涉及的驻点的构型和振动频率及其能量，给出了两张完整的反应势能面，结果表明，氟原子从C原子上抽氢时有一条明显的最低能量通道，而从氧原子上抽氢时要涉及多条分支通道和多个驻点构型，给出了各分支通道势能面示意图，结果表明以形成五元环状过渡态通道为优势通道，计算得到经途径1生成CH_2OH时反应放热170.62kJ/mol，经分支途径6生成CH_3O自由基时反应放热119.4 kJ/mol，此结果与实验值一致。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。