查询词典 molecules

When water is confined in tubes of very small bore, the forces of cohesion (the attraction between water molecules) are so great that the strength of a column of water compares with the strength of a steel wire of the same diameter.

当水被限制在内径很小的管道中时，内聚压力(水分子之间的相互吸引力)是如此之大以致一支水柱的强度相当于一根直径相同的钢丝的强度。

When water is confined in tubes of very small bore, the forces of cohestion (the attraction between water molecules) arc so great that the strength of a column of water compares with the strength of a steel wire of the same diameter.

当水在被限在非常小的管道中时，粘力是如此的大以至于水柱的水量可以和相同直径的钢丝的力量相比。

Meanwhile, they are vital in descendiblity, aberrance, develop of organism and also in compound of the protein molecules.

核酸在生物的遗传变异、生长发育以及蛋白质合成中起着重要的作用。

One easy way to assemble molecules from a dilute solution is to concentrate them on a flat surface. Errant molecules might have been drawn to the calm surface of a tidal pool or perhaps to a primitive "oil slick" of compounds trapped at the water's surface.

从稀溶液中聚集分子有个简单方法，可在一个平坦表面上使分子聚集，游荡分子也许会跑到潮间池的水面，或者水面上类似浮油的化合物中。

Bioinformatics is conceptualising biology in terms of molecules(in the sense of Physical chemistry) and applying "informatics techniques"(derived from disciplines such as applied maths, computer science and statistics) to understand and organise the information associated with these molecules, on a large scale.

对序列，结构数据进行定性和定量分析，从中获取基因编码，基因调控，序列-结构-功能关系等理性知识阐明细胞，器官和个体的发生，发育，病变，衰亡的基本规律和时空联系探索生命起源，生物进化，生命本质等重大理论问题，最终建立&生物学周期表&

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

The energy transfer of highly vibrationally excited molecules plays an important role in many chemical processes. A number of experimental and theoretical works have focused on the energy transfer dynamics of highly vibrationally excited molecules.

中文摘要高振动激发态分子的能量转移在许多的化学过程中，扮演很重要的角色，所以过去不管是实验或是理论计算方面均有许多的研究。

In this paper we address the question of the transition between autoionization that prevails in small molecules, and delayed ionization occurring in larger molecules or clusters. This transition is illustrated by autoionization of Na2 Rydberg states on one hand, delayed ionization in fullerene C60, and delayed detachment in small cluster anions on the other hand.

本文通过Na2的里德堡态的自电离，富勒烯C60的延迟电离，阴离子小团簇的延迟解离研究了在小分子中起主导作用的自电离和在大分子以及团簇中出现的延迟电离之间的转变过程。

Clausius had recently published two articles using the mathematics of probabilities to express the velocities of molecules in gas, and this stimulated Maxwell to write about gas molecules having a range of velocities, known today as the Maxwell

在1859年，他出版了一本厚达1859页的&气体的动态的理论的插图&文章。

Moreover, it was found the reaction mechanism could be explained by Langmuir - Hinshelwood adsorbing theory, and the ratedetermining step is surface reaction between adsorbed molecules of methyl acetate and unadsorbed molecules of water.

得出可用Langmuir—Hinshelwood吸附理论描述该反应过程的反应机理，其控制步骤是吸附在催化剂表面的醋酸甲酯同未吸附的水所发生的表面反应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。