ring formation
英 [rɪŋ fɔːˈmeɪʃn]
美 [rɪŋ fɔːrˈmeɪʃn]
网络 成环作用; 环形成; 形成
双语例句
- The colliding galaxies would have created a powerful density wave that would have swept out the material into an expanding ring, stimulating star formation.
碰撞的两个星系产生了强烈的密度波，把物质推到外侧的环形上，并激发了恒星的形成。 - Major factors that affected the degree of esterification and1,6-anhydro ring formation were studied to produce the title compound which met the European Pharmacopoeia standard.
研究了影响酯化率与成环率的主要因素，控制合适的酯化、解聚和纯化条件，得到的依诺肝素钠成品符合欧洲药典标准。 - It shows that oxidation temperature and time have great effects on the degree of ring formation for PHF.
发现多孔中空氧化纤维的环化程度随氧化温度升高和氧化时间延长而提高。 - Analysis and Solving Method for Cause of Ring Formation in Active Lime Rotary Kiln
活性石灰回转窑结圈原因分析及处理方法 - Mechanism Study and Countermeasures on Ring Formation of Rotary Kiln Used to Produce Oxidized Pellets in KISC
昆钢球团回转窑结圈机理研究及预防控制 - A RESEARCH ON THE ORIGIN OF YARN HAIRINESS AT RING SPINNING Analysis of the Formation of Fuzzy Yarns and Slubs
环锭细纱毛羽形成因素研究细纱毛羽、粗细节产生原因的剖析 - Ring closing metathesis ( RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。 - Macrophage Endocytosis test and? Rose Ring Formation test proved that CS-TF can enhance immunological functions.
通过巨噬细胞吞噬试验及E玫瑰花环形成试验证明，CS-TF能增强机体的免疫功能。 - Original construction method of concrete ring wall of large scale storage tank often has some problems such as big deformation and spacing deviation of reinforcing steel bars, being difficult to control ring wall curvature and low primary formation rate.
以往大型储罐基础混凝土环墙施工极易存在钢筋变形大，间距偏差大，混凝土环墙曲率难以控制，一次成型率低等问题。 - The Effect of Ring Formation on the Sol-Gel Distribution(ⅰ)& A_ α-B_b Type Polycondensation
分子内环化对溶胶凝胶分配的影响（Ⅰ）&Aa-Bb型缩聚反应 - In process of spinning, The winding formation depends directly on the up and down movement of ring bar, especially the repeated bumping and beating of nose bit and nose base on the formation cam.
在纺纱过程中，钢领板的上下运动直接影响到卷绕成形的质量，特别是成形凸轮在桃尖的冲击及桃底的打顿，更突出地影响到成形的好坏。 - The proportion of E-rosette ring formation was 7.33% on average.
E玫瑰花环形成率平均升高7.33%。 - A Result of Interacting Galaxies: Numerical Simulation of Ring Galaxy Formation
星系相互作用的一个结果：环星系形成的数值模拟 - The reaction mechanisms of ring cleavage and para-banic acid formation were discussed.
对开环反应机理和乙二酰脲的形成机理进行了探讨。 - A Novel Ring Topology Formation Protocol of Bluetooth Networks and Its Simulations
一种新的环型蓝牙网络拓扑形成协议及仿真 - Applications of thionyl chloride in pharmaceutical and pesticide sectors and application developments in organic synthesis reaction and ring formation reaction are introduced.
介绍了无机精细化工产品氯化亚砜在医药、农药等工业领域的应用及其在有机合成反应、成环（或闭环）反应中的应用开发现状； - The standardization of education and the shift of cultural ring will lead to the interruption of cultural inheritance and the formation of the mechanism for selecting new culture, under whose influence there is a strong tendency that the dominant culture is replacing the traditional one.
教育的正规化与文化场的转换客观上形成文化传承的中断与新文化选择机制的形成，在其作用下主流文化对传统精神文化的替代趋向日愈明显； - Fission in a Graduated form is an Apparent Characteristics of the Nebulous Ring Formation
级式分裂是星云环形成的一个明显特征 - From the variations of the spectral bands, it is suggested that the scission of the phthalazine ring along N-N bond occurs during pyrolysis, leading to the formation of compounds of phenyl with the conjugated nitrile group and the isocyan group.
根据谱带的变化规律，提出了试样在热解炭化时会沿着二氮杂萘环的NN键断裂，形成共轭腈基及异氰基的苯环化合物。 - The influence of the substituted groups R in ligands and potassium ion in the crown ring on formation and stability of dioxygen adducts was investigated.
考察了取代基R和冠醚环配合的钾离子对二氧加合物形成及稳定性的影响。 - Compared to Soda-AQ pulping the cleavage of aromatic ring and formation of HOO~ in Alkaline-Oxygen pulping are particular.
氧碱制浆中木素芳环的断裂和HOO~-生成也是Soda-AQ制浆所不具备的。 - Controls and precautions of lumping and ring formation.
结块/结圈的控制与预防； - Experimental simulation on shield ring formation repeatedly by drilling fluid completion fluid
钻井液完井液屏蔽环重复形成的实验模拟 - The ring structure and formation of hydrocarbon in North China
华北地区环形构造与油气形成 - The higher the average molecular weight of heavy oil or their ring formation, the lower the KL value.
重油的平均相对分子质量和环化程度越高，KL值越小； - Therefore, to develop the grate-kiln process with mature technology, high production and strong adaptability of raw materials, appears especially important. But the process has a problem of ring formation which brings great trouble to improve the production and quality of pellets.
所以发展工艺成熟、产量大、原料适应性强的链篦机-回转窑法生产球团显得尤为重要，然而该工艺同时存在着结圈的问题，给工艺产质量的提高造成很大困扰。 - Temperature and atmosphere control are of great important, appropriate atmosphere and temperature will be able to avoid the phenomenon of bonding and ring formation.
研究表明，煅烧物料时温度和气氛控制尤为重要，气氛和温度控制适当将能避免物料的粘结和结圈现象出现。 - The results show that: according to the axial direction, the spray structure of flash boiling spray can be classified into follows: spray initial core region; main body region of flash boiling spray; vortex ring formation region.
结果发现：按照喷雾轴线方向，闪急沸腾喷雾的结构可以分为喷雾初始核区，闪急沸腾喷雾的主体区和涡环形成区。 - The formation mechanism is attributed to the role of long-chain flexible polyethylene glycol, benzene ring accumulation in long-chain flexible molecules and formation of micro-helical structure.
在聚乙二醇的作用下，制备螺旋型聚邻氨基酚。其形成机理归结为聚乙二醇长链的柔顺性，邻氨基酚的刚性结构苯环在长链柔性分子上的堆积，形成微米螺旋结构。 - Moreover, additional ring formation has been demonstrated by using the Pd-catalyzed intramolecular N-arylation of secondary amides, leading to the first synthesis of a novel class of heterocyclic conjugates tethered through a C-N single bond.
通过Pd-催化分子内二级酰胺的N-芳基化反应，又可以得到一个新的杂环，首次成功地用于合成以C-N单键连接两种不同杂环的轭合物。