成核

Sorbitol acetal s is the most one kind of the nucleating agents for polypropylene crystallization.

山梨醇缩醛是最重要的聚丙烯成核剂之一。

The batch reactor often used to investigate the kinetics of crystal growth on seeded precipitation of sodium aluminate solution .

在铝酸钠溶液的种分过程中，往往利用间歇式反应器来研究晶体的长大动力学，由于受实验过程条件的变化及成核和小粒子附聚的影响，实验结果往往不令人满意。

Amino desacetoxycephalosporanic acid (7 - ADCA) is an ampholyte.

7-氨基去乙酰氧基头孢霉烷酸是两性化合物，从等电点两侧改变溶液的 p H值都可以产生过饱和度并结晶得到晶体产品，本文对 7-ADCA两种方法结晶的初级成核过程进行了研究。

But bivalent and trivalent metal salts of the phosphoric acid had little effect on properties of iPP.

而二价的钙盐、镁盐、锌盐和三价的铝盐的成核效果不明显。

The variation of optinum temperature during carbonation should produce reasonable number of nuclei and supersaturation for crystal growth.

碳化过程的温度条件的优化不仅仅要从控制成核速率的角度而且要从晶体生长条件的角度进行。

Cryotherapy: the use of freezers, liquid nitrogen as a refrigerant, the haemorrhoidal冻成block them off necrosis.

冷冻疗法：即使用冷冻机、液态氮作冷冻剂，把痔核冻成块，让其坏死脱落。

A new heat storage material (CH3COONa·3H2O) with a phase change temperature of 55℃ and a sub-cooling temperature of less than 2℃ was developed. This sodium acetate trihydrate based material was obtained by a number of experiments for selecting proper nucleation catalysts and suspension mediums.

以三水醋酸钠(CH3COONa·3H2O)为蓄热基质，通过大量实验，遴选合适的抗沉淀剂和成核剂，配成相变温度约55℃、过冷度小于2℃的蓄热材料。

Suggestion is firstly put forward that both of the microprecipitates condensed by N-N pairs and the N-O complex might act as the heterogeneous nuclei for the nitrogen and oxygen involved precipitation with high heat stability. Nitrogen is fixed into them, which determines the unreversible annihilation of NRD.

在此基础上，本文进一步探讨了NRD的热稳定性及其消除规律，首次提出N-N对自凝聚而成的微沉淀态以及N-O复合物皆可能成为具有较高热稳定性的微氮氧沉淀的异质成核中心，氮被固化其中，NRD得以不可逆消除。

The results clearly prove an evolution mechanism of type B PLC shear bands, that is, a PLC shear band first nucleates at one side of specimen, then transversely runs through the entire specimen section with a certain angle, finally forms an inhomogeneous deformation bands.

实验结果清楚地证实了B型PLC剪切带的一种演化机制，即先在试样一侧成核，然后与拉伸轴成一定角度横向贯穿整个试样，最终形成非均匀塑性变形带。

At this stage, the deposited Mn either cooperates into the 3D Pb capped Mn islands, and promotes the upright growth of the 3D Pb capped Mn islands, or nucleates and growths on the MnTe superstructure area.

这个阶段中，沉积的Mn原子部分在MnTe超结构区域成核生长；部分则吸附于Pb覆盖的Mn岛表面，促进岛的纵向生长，但并不改变岛的其他性质（包括岛的横向大小、几何形状及表层成分等）。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。