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The difference of ammonia, amido, amino group and quaternary ammonium salt, some common wrong expressions on them, and the valence state of phosphorus in some of its oxyacid were pointed out.

指出了氨、氨基、胺基及季铵盐的区别及其常见错误表述，以及磷的几种含氧酸中磷的价态，并着重指出没有&次亚磷酸&的叫法。

This thesis mainly employs the density-matrix renormalization group to investigate the valence bond model. We deal with the one-dimensional and quasi-one dimensional benzenoid systems from medium to infinite sizes successfully and get the ground state energies, the first excited state energies and other properties for the first time.

本论文的主要方面是将密度矩阵重整化群方法引入苯型分子的半经验价键处理，精确计算了一维单层苯型烃及双层苯型烃从小到大，直至无限的基态能量，第一激发态能量及局域芳香性等基本性质。

The bichromatic laser is also expected to induce the confined(i.e.,frequency fixed)Rabi flopping between conduction and valence bands in SSL's.

我们发现，双色激光驱动的超晶格中的导带价带之间的Rabi翻转的频率只能取分立值。

There exists isomorphous replacement in the rutile structure, and the most prominent feature is the average content of oxides, being 1.22%, 0.39%, 0.35% and 0.22% for V 2O 5, Fe 2O 3, ZnO and CuO respectively. They substitute Ti 4+ in octahedra. The valence of V is 5, and its polyhedron is trigonal bipyramid, which causes the lattice distortion, breaks the raw octahedron symmetry into square bipyramid, and produces the microstrains in the structure.

天然含钒金红石平均含V2O5可达1.22％，Fe2O30.39％，ZnO0.35％，CuO0.22％，这些金属离子可替代八面体中Ti^4 。V以5价形式存在，配位多面体呈三方双锥，其在晶格内部对Ti的替代导致晶格畸变，打破了配位多面体原有的八面体对称而呈四方双锥的几何形态，并产生结构微应力。

Seen from the present study condition,the emotions of different valence load recruit partly overlapped brain areas;the studies on the recognition of facial expression show that different facial expressions activate different neural circuitries;the studies on induced emotions show that the anterior cingulated cortex seems to play a very important role in presenting experimentinduced emotions.

继James-Lange理论以后，Arnold，Lazzrus和Izard等又相继提出了不同的情绪理论，并且试图对情绪的中枢加工机制进行探讨和解释。但由于情绪本身的复杂性和方法学的限制，有关情绪的中枢加工过程和脑机制的探讨一直停留在较低的水平上。

The results showed that with the same coprecipitation mixing time the average manganese valence of MnZn-ferrite samples were increasing as the pH value increasing.

重点研究了前驱体制备过程中共沉淀时的pH值和共沉淀时的搅拌时间的影响。

Be necessary to have new knowledge to the concept of value, grant valence watch extensive intention, this can let us understand the decision of value creation and magnitude of value deeplier not only, still can show a lot of issues in contemporary socioeconomy life better with labor theory of value.

有必要对价值的概念进行重新的认识，给予价值更广泛的内涵，这不仅能让我们更深刻地理解价值创造和价值量的决定，还可以用劳动价值论更好地说明当代社会经济生活中许多问题。

It is the first time to use the " soft ball model" theory of duster to explain the structure of Yn ( n=2-8),and adopt the "shell model" theory and assigning equally delocalize valence electrons of cluster to elucidate the relativity of structure and stability of doped cluster of noble metal Au,,Y(l -9) successfully.

首次利用团簇的&软球模型&理论解释了Y_n(n=2-8)的基态结构，采用团簇的&壳层模型&和价电子离域均分理论成功地阐明了贵金属掺杂团簇Au_nY(n=1-9)的结构与稳定性的关系。

He obtained a complex product containing the ion +(with a valence structure 1 isoelectronic to dihalogen molecules) rather than the expected Xe+.

他获得一个复杂产品含有离子+（有价结构1等电子以dihalogen分子），而不是预计氙+。

Objective To study the relative bioavailability and bioequi-valence of sertraline hydrochloride dispersible tablets in healthy volunteers.

目的研究盐酸舍曲林分散片在健康人体的相对生物利用度和生物等效性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷