查询词典 bleaching process

Amount of auxochrome phenolic hydroxyl(0.29 unit/C9)in lignin from H_2O_2 bleaching chemi-mechanical pulp is slightly higher than one of material(0.28 unit/C9), so amount of auxochrome phenolic hydroxyl can not be effectively decreased by alkaline peroxide bleaching process.

麦草化学机械浆纸浆经过碱性H_2O_2漂白，木质素中酚羟基含量(0.29个/C9)略高于原料中的酚羟基含量(0.28个/C9)，说明H_2O_2漂白不能有效地减少木质素中酚羟基这类助色基团的数量。

In order to solve the temperature optimization Control for basification Tower in complicated bleaching process, the optimization control strategy is analyzed. To avoid trapping at local optimization effectively, the improvement method for standard genetic algorithm is proposed.

摘 要：针对工艺复杂的漂白工段碱化塔温度控制优化问题，分析了碱化塔温度优化控制策略，提出了标准遗传算法的改进方法IGA，有效避免了标准遗传算法寻优过早陷入局部最优解问题。

The techology conditions were analyzed such as pH value of slurry,concentration,temperature,amount of bleaching agent,bleaching time in the chemical bleaching process of kaolin and light calcium carbonate.

通过大量的试验和工业生产实践，对化学漂白的影响因素、漂白药剂选择与搭配进行了较深入探讨。

Micro carnauba can look white, but in general the carnauba wax is whitened by a bleaching process or by tumbling the flakes in paraffin wax.

细棕梠蜡可能会看起来是白色的，但通常都是因为经漂白或融入石油蜡过程漂白的关系。

2KD (PI=4. 5) special polypeptide-PI disappeared in the chlorosis area during the bleaching process.

但有一个56.2kD（PI=4.5）的特异蛋白在失绿区域的组织中消失，而在同一叶片的绿色区域组织中则可检测到该蛋白。

This bleaching process is called "kier bleaching", and is generally carried out in two stages with a sodium hypochlorite pre-bleach and a hydrogen peroxide after-bleach.

这漂白过程称为"基利漂白"，并普遍开展了两个阶段的次氯酸钠预漂白和过氧化氢后的漂白剂。

During the bleaching process,there was no significant change of lignin structure unit.The carbonyl and quinoid structure had a close relati...

同时对不同纸浆在漂白过程中的变化进行了研究，对影响纸浆白度的因素进行了分析

A comparison of the bleaching process of zooxanthellae from two different strony corals, Galaxea fascicularis andAcropora austeraField observation showed that in elevated sea water temperature Acropora austera bleached very fast whit while Galaxea fascicularis did not.

从野外采回不同珊瑚的共生藻，在光照下培养后发现自简单轴孔珊瑚分离出的共生藻较丛生棘杯孔珊瑚中分离出之共生藻容易丧失色素。

The same phenomenon was also observed in laboratory experiment A. austera bleached within two days in 33℃. The bleaching process included losing the number of zooxanthellae and the reduction of the pigments in zooxanthellae.

而实验室中的白化实验也发现：简单轴孔珊瑚在水温33℃时，第二天即开始白化，而白化时珊瑚不仅共生藻数目会减少，其单位共生藻的色素量也会减少。

The chemical components of eucalyptus and their changes during the alkali sodium sulfite pretreatment and peroxid bleaching process had been studied by FTIR.

用傅里叶变换红外光谱法对桉木中各组分在碱性亚钠法化机浆预处理及漂白过程中的化学变化进行了研究。

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。