查询词典 retardation

It was found that both the conversion and the initiating efficiency of methyl methacrylate polymerization system were decreased in the presence of small amounts of addition inhibitions 2,4,6-trinitrophenol or Benzoquinone, the system exhibited some retardation characteristics; at the same time, the molecular weights of obtained polymers was small and the molecular weight distributions was narrow, it was suggested that this polymerization system exhibited some ""living""/controlled radical polymerization characteristics.

发现在甲基丙烯酸甲酯的普通自由基聚合体系中加入少量的加成型阻聚剂2，4，6-三硝基苯酚或1，4-苯醌时，体系转化率降低，引发效率降低，呈现出一定的缓聚性质：同时得到的聚合物分子量变小，分子量分布变窄，具有一定的&活性&/可控的特征。

PC-based stress scanners for biaxially oriented materials measure retardation in both normal and oblique paths.

基于PC的应力扫描器为双向拉伸材料举措迟缓，在正常和斜路径。

Radiation crosslinking; PE foam; Flame-retardation. Capsulated red phosphorus; Titanate coupling agent

辐射交联；聚乙烯泡沫塑料；阻燃；微胶囊化红磷；钛酸酯偶联剂

Results 2 years later the two group infants were observed with the prognosis (such as sensorineural hearing loss, mental retardation and other neurological abnormalities, chorioretinitis, eye shrinkage, liver cirrhosis and death, etc).

结果：2年后观察两组患儿预后（如感觉神经性耳聋、智力低下和其他神经系统异常、脉络膜视网膜炎、眼球萎缩、肝硬化及死亡等）。

Herpes simplex virus infection to the fetus through the placenta, pregnancy first 8 weeks of infection and occurrence of fetal malformations can generally mainly small head, small eyes, chorioretinitis, crystal turbidity, heart abnormalities, limb abnormalities, intrauterine growth retardation, cerebral dysgenesis, hydrocephalus, corneal cataract formation of the liver, splenomegaly, pneumonia and so on. 2, diagnosis:(1) direct examination, electron microscopy examination herpes fluid, can be found herpes virus-like particles.

单纯疱疹病毒通过胎盘传染给胎儿，妊娠头8周感染可使胎和发生畸形，一般主要为小头，小眼，脉络膜视网膜炎，晶体混浊，心脏异常，肢体发育异常，宫内生长迟缓，脑发育不全，脑积水，角膜翳形成肝，脾肿大，肺炎等。2、诊断：(1)直接检查，用电镜检查疱疹液，可发现疱疹病毒颗粒。

On the basis of the elastic-plastic analysis of the crack tip zone under cyclic loading, suggested by Rice, the general expression for the delayed retar- dation parameters and the delayed retardation formula, containing the four parameters, were proposed by using Matsuoka model.

基于Rice对循环加载下裂纹尖端的弹塑性分析，按照Matsuoka模型理论，提出了迟滞参数的一般表达式和四参数迟滞公式，并对本文的试验结果及Matsuoka的试验结果进行了分析讨论。

The chemical activating mechanism of UA is that CG can stimulate pozzolanicity more effective than gypsum because of higher solubility and looser crystal structure; but CG has poor property on retardation setting, and this shortage can be solved by mixing with gypsum; CS can offer alkali activity, which can depolymerize silica and aluminum glass, and benefit for other activity methods and overcome the disadvantage of HF on setting time; Sodium sulfate improves early strength greatly but loses the final strength. NF can improve both early and final strengths.

联合激发技术的化学激发机理是，煅烧石膏溶解度高及晶体结构松弛，比天然石膏的活性激发效率高，但降低石膏的缓凝作用，与天然石膏混合既可提高活性又能保持缓凝作用；干法电石渣提供碱激发，促进高钙灰中硅、铝玻璃体解聚，并克服高钙灰对凝结时间的不利影响；硫酸钠虽然早强作用明显，但使后期强度倒缩，NF使各龄期活性都得到提高；磨细的物理激发使高钙灰大颗粒中的CaO和富集碳组分被磨细、分散，活性增加而危害性降低。

The phenotype of partial trisomy 1 and partial monosomy X of the present case was much attenuated, including premature ovarian failure, mental retardation, class I obesity, mild dysmorphism, and delayed secondary sexual characteristics.

该患者主要存在卵巢早衰、智力障碍，I度肥胖，轻微畸形以及第二性征发育迟缓等，与单纯的部分1－三体综合症等相比表型大大弱化。

Results The main clinical manifestation of the 5 patients are progressive intracranial hypertension, repeated epileptic attack,accompanied by various degrees of mental retardation and dysphrenia.

结果 该病主要临床表现为进行性颅内压增高和反复癫痫发作，同时伴有不同程度的智力与精神障碍。

The patient was affected by congenital heart defects, short stature, mild mental retardation and cutaneous abnormalities, including dry skin, eczematous skin, sparse, curly eyebrows/eyelashes, mildly curly hair, a peculiar craniofacial appearance with low-set posteriorly rotated ears.

他具有先天心脏缺陷，矮小，轻度智障以及皮肤上的异常，包括皮肤乾燥，湿疹性皮肤炎，稀疏，卷曲的眉毛／睫毛及轻度卷曲的头发，独特的颅面外观并有低位且向后旋转的耳朵。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。