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CH3OH could attack the phosphor atom in 1,3,2-dioxaphopholane of compiound (1) to give O-methyl O-hydroxyethyl-O-phthalimidoethyl thiophosphate in 85% yield; in the presence of potassium hydroxide aryl selenol could attack the carbon atom in 1,3,2-diox-aphopholane of the cyclic phospholipid conjugate of N^1-(2-furanidyl)-N^3--5-fluorouracil to give the corresponding product of ring-opening in high yields.

在室温下，以异丙醇作溶剂，苯硒酚与化合物2不反应。在氢氧化钾存在下，以异丙醇／水作溶剂（体积比20：1，在室温下，硒酚可以有效地进攻中化合物2中1，3，2-二氧磷杂环戊烷中的碳原子生成相应的开环产物。按照这一反应条件，顺利实现了硒酚对N^1-（2-呋喃基）-N^3-羟烷基-5-氟脲嘧啶硫代环甘油磷脂缀合物的亲核开环，生成甘油骨架的端碳原子上带有芳硒基新颖的磷脂核苷缀合物。

Ta atom is triangularly coordinated and M atom is trigonal-pyramidally surrounded by Te atoms.

Ta具有三角形的Te配位， M具有三角锥的Te配位。

In this work, taking into account the molecular fraction and the presence of the 4-atom, we calculated the Gibbs free energy and studied, the influence of the percent of 4-atom on the parameters of the triple point and the critical point.

本文进一步考虑4-原子的存在，计算了有空格点存在时系统的吉布斯自由能，研究了4-原子所占百分数对三相点t_t，P_t值以及临界点t_c，p_c值的影响，获得了具有三相点和临界点的完整相图。

Structural and density of state analysis shows the interaction of O atom and surface is the total contribution of valance orbital of O atom and hybridized surface orbital of NiTi alloy.

态密度分析和结构分析表明，O原子与表面的相互作用主要是由O原子价轨道和NiTi合金杂化表面轨道贡献。

Each of the four valency electrons of the carbon atom is shared with one of a hydrogen atom.

碳原子的四个价电子都各与氢原子的一个价电子共用。

In such structure, each In atom is bonded with two Si substrate atoms and one neighboring In atom, thus all three valency of In are saturated.

在这种再构结构中，每个 In 原子与两个衬底 Si 原子及一个相邻的 In 原子形成共价键。

In the structure of complex (1), two L valine molecules chelated with Cu in five member ring by the coordination of amino nitrogen atom and carboxylate oxygen atom with the center ion.

在自组合过程中，配体与配位中心离子以自发和直接的配位络合方式能够产生精致的超分子晶体结构 [1，2 ] 。

The calculated results show that H atom preoccupies the twofold bridge site of the subsurface on the intact W(100) surface at low coverage, and obtains the perpendicular vibration frequency of 156 meV. The H-atom adsorption on bridge site, top site and fivefold hollow site (the top site on the second W layer) were observed at high coverage.

计算结果表明，低覆盖度下， H原子优先吸附在W(100)面的内层吸附位二层桥位B'，获得156 meV的垂直振动频率，随着覆盖度的增加， H原子稳定吸附在表层的五重洞位、桥位及顶位。

Be able to ionization happened in molecule or atom in atmosphere under machinery , brightness , static electricity , chemistry or biological energy source effect, whose outer layer electron abjunction atomic nucleus, these lose the electronic molecule or the atom is called the positive ion or the positive ion with positive charge , us.

大气中的分子或原子在机械、光、静电、化学或生物能作用下能够发生电离，其外层电子脱离原子核，这些失去电子的分子或原子带有正电荷，我们称为正离子或阳离子。

The visible oxygen atom that settles on a titanium atom is known as an "adatom".

可见的氧原子，解决了一个钛原子被称为&原子&。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"