查询词典 molecule

Methane adsorbed on the Mn〓O〓-Na〓WO〓/SiO〓 catalyst can not be found, but it can be adsorbed on outgassed silica at 173K. Such adsorption is formed by interaction of the adsorbed methane with O〓〓 sites and hydroxyls on the surface. The appearance of the band at 2904cm〓 of the V〓 mode (sym. stretch.), which is an infrared forbidden vibration, implies that the Td symmetry of the methane molecule may be distorted somewhat on the surface of silica. The small frequency shift (30cm〓) of OH stretching indicates that only a weak hydrogen-bonding interaction between adsorbed methane and hydroxyls exists in the methane adsorption.

甲烷不能在Mn2O3-Na2WO4/SiO2催化剂上吸附但在l73K的温度条件下可吸附于SiO〓表面上，这种吸附是通过吸附甲烷与表面配位不饱和氧和表面羟基作用而形成的，红外禁阻的V〓振动模式显示出红外活性说明甲烷分子的Td对称性发生畸变，甲烷吸附后羟基位移只有30cm〓，吸附甲烷同表面羟基间的氢键作用很弱。

The gene launches a biochemical process in which a molecule called plasmin perforates the membranes of tissues, causing the membranes to break down and allowing the cancer cells to escape into the bloodstream and to adjacent tissues.

这种基因启动了一种生化过程，在这个过程中，一种叫做血浆酶的分子能够在组织膜上打孔，并导致膜降解，从而使癌细胞能够流窜到血管和临近组织。

Objective To investigate the relationship of Wnt signaling pathway and E-cadherin/catenins as well as their roles in the invasion and metastasis of gastric carcinoma in order to provide valuable molecule marker to clinical diagnoses and prognoses.

目的 探讨胃癌中Wnt信号通路与E-cadherin/catenins复合体的关联性及其与胃癌浸润转移的关系，为指导临床治疗与判断预后提供有价值的分子指标。

A molecule striking an advancing piston recoils with increased speed.

撞在前进中的活塞上的分子，会加速反跳。

The PCR method can be used for reduplicating a segment of a DNA molecule, e.g.

等发明了具有划时代意义的聚合酶链反应。

Benzene molecule may be adsorbed on the surface of the roughened Rh electrode with a structure like 1,3- cyclohexadiene.

作为最简单的芳环化合物，苯是该方面研究的首选分子。

The substrates were used in fabricating liquid crystal cells by sandwiching nematic liquid crystals and the properties of liquid crystal molecule aligned on the surface of LPP films were characterized by using polarizing microscopic and conoscopic observations.

在此基础上，利用偏光显微镜和焦锥观察的方法系统地考察了LPP膜厚度、液晶材料、烘烤温度和时间、取向剂分子末端基团以及紫外辐照强度和时间等因素对取向性能的影响，并测量了液晶分子的预倾角。

In Chapter 3, single molecule and their aggregate behavior of hydroxypropyl cellulose were studied by AFM and Laser Light Scatting methods.

第三章中，利用AFM和激光光散射研究了羟丙基纤维素的单分子结构及相互聚集的行为。

The main academic productions of this thesis are:(1) the parallel algorithms of computing permanents and permanental polynomials of sparse matrices are designed and implemented;(2) an efficient balancing straggles of parallel load is proposed using the theory of scheduling;(3) valuable data for the research of the molecule structure of fullerenes are obtained;(4) the multi-dimensional stable marriage model and its numerical methods give a new path to solve the clustering problems.

本文的主要学术贡献是：(1)设计并实现了稀疏矩阵积和式与积和多项式的并行算法；(2)利用排序理论给出了有效的负载平衡策略；(3)为富勒烯分子结构的研究提供了有价值的数据支持；(4)多维稳定婚姻模型及计算方法，为聚类问题的求解提供了新途径。

First, with the gelation property of alginate molecule in Ca2+ solution, collagen/alginate threads were prepared through thermally controlled syringing collagen/alginate (w/w=1:3) solution into 2% CaCl2 solution.

第一阶段利用褐藻酸高分子在钙离子水溶液的环境下迅速成胶的特性，再运用湿式纺织技术，将胶原蛋白与褐藻酸混合溶液(胶原蛋白重：褐藻酸重＝1：3)经由恒温注射针筒系统以2ml/min的流速挤压至氯化钙水溶液(2%)的成型槽中，并控制罗拉转速，制备胶原蛋白/褐藻酸细丝。

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。"