ring formation

Molecular rearrangement reaction was observed during the heat treatment and the formation of hexahydric imide ring was identified.

在发泡和后处理过程中分子链发生重排反应，生成六元酰亚胺环。

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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。

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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。

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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。

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With EM, LM and histochemical method, 9 cases of signet-ring cell carcinoma of the stomach were studied to find out that most signet-ring cells resulted from accumulation of numerous mucus-secreting granules, and a few were caused by the formation of microcyst in the cytoplasm.

应用电镜、光镜及免疫组化法对9例胃印戒细胞癌进行研究，发现大部分印戒细胞癌是由胞质内大量粘液颗粒积聚所致，少数则由胞质内微囊形成所致。

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The fact of reaction rate decreasing linear with the steric hindrance of ester groups shows that the formation of ring coordination compound between rare earth ions and salicylate ester takes an important role in the nitrosation reaction.

反应速度随酯基基团空间位阻效应呈线性下降，说明稀土离子与水杨酸酯之间环状配位化合物的形成在亚硝基化反应中起着重要作用。

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Cutting forces and Cutting Chip Formation affected by Wood Annual Ring

木材年轮对切削力和切屑变形的影响

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In addition, the result derived from G3MP2 shows that the heats of formation of all conformers are positive and heats of formation of ring con-formers are greater than those of chain conformers.

G3MP2计算结果表明氮氢化合物的生成热均为正，并且环状分子的能量和生成热都高于链状分子。

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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。

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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。

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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。

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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；

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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

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