查询词典 electronegative

The general judgment of ferroelectrics perovskite stability using the tolerance factor and electronegative value of force difference,the stability of ferroelectrics perovskite can be well explained.

利用容忍因子和平均电负性力标差值作为钙钛矿稳定性的综合判据能很好说明钙钛矿稳定性。

A novel atomic electronegative distance vector is developed to express the chemical environment of various chemically equivalent carbon atoms in androsterones .

提出以5元素构建原子电性距离矢量，描述雄甾酮化合物中不同等价碳原子的化学环境。

In fokelore, be in very long a long time ago, god created Adam with mud by his body; Later, the suffering that suffers loneliness to make he is avoided created Eve again------Each a breast is in before the bosom, with a pair electronegative micturition organ is in private parts.

传说中，在很久很久以前，上帝按自己的形体用泥巴创造了亚当；后来，为了使他免受孤独之苦又创造了夏娃------每人都有一个乳房在正胸前，和一副阴性排尿器官在下体。

A chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond .

一种化学键：由两个负电原子及其间的氢原子组成，其中一边是共价键，另一边是离子键。

Without going into a great deal of theory regarding electrochemical principles and the solution of metals, it has been determined that corrosion of steel is stopped when its potential to a copper-copper sulfate electrode is –0.5 volt or more electronegative with the reference electrode placed close to the electrolyte/structure interface.

不需要太多的电化学原理和金属溶液理论，人们已经知道，当把参比电极放于电解质和结构界面附近，钢或铁相对于铜－硫酸铜电极的电位达到－0.5伏或更负时，钢、铁的腐蚀就会停止。

The method detects with ELISA law level of albumen of patient plasma S100B, applied positive and electronegative symptom quantity are expressed assess patient.

方法用ELISA法检测患者血浆S100B蛋白水平，应用阳性和阴性症状量表评定患者精神症状。

The method changes a law to detect with immune group the expressive circumstance of the Survivin of the electronegative organization that cut a predestined relationship and 10 normal stomach organizations below qualitative tumour and 56 corresponding smooth lens between 57 stomaches and Caspase-3, have relevant research.

方法用免疫组化法检测57例胃间质瘤和相应的56例光镜下阴性切缘组织及10例正常胃组织的Survivin和Caspase-3的表达情况，并进行相关的探究。

A novel fluorescent probe, which is both pH-selective and pH-sensitive for the two extreme pH ranges of 1.8-3.4 and 11.6-13.3, was designed by assembling several electronegative atoms in the different positions of a highly conjugated molecule.

通过构建喹啉酮荧光体，将多个电负性氮原子设置于同一个共轭分子的不同电子环境中，制作了对极端pH变化具有灵敏响应的新型荧光探针。

A large number of bond-type complexes, as long as the hydrogen of the molecules covalently coupled to the molecular approach in an electronegative atom up, that constitutes a hydrogen bond, there are intramolecular hydrogen bonds and intermolecular hydrogen bonds of the points, will affect the formation of complex reaction carried out, such as in solution adding dioxa cyclohexane, or tetrahydrofuran, will reduce the alkylation reaction rate.

氢键型络合物为数众多，只要含氢的分子以共价键方式耦合到分子中一个电负性原子上去，即构成氢键，有分子内氢键和分子间氢键之分，络合物的形成将会影响反应的进行，如在溶液中加入二氧杂环己烷或四氢呋喃，都会降低烷基化反应速率。

The results showed that the TEAOH possessed stronger framework-directing function during the synthesis process of SAPO-34 molecular sieve, and took up more electronegative framework positions while the morpholine mainly filled the micropore system of SAPO-34 molecular sieve.

结果表明，TEAOH在导向生成SAPO-34分子筛骨架过程中表现活跃，占据了较多的平衡骨架负电荷的位置，而吗啉主要起到填充分子筛孔道的作用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。