查询词典 bleaching agent

In this paper the studies are focused on the puling technology, pulping mechanism, black liquor recycling and alkaline-oxygen pulp bleaching.

本论文对麦草氧碱制浆特性、制浆机理、制浆黑液回用及氧碱浆的漂白特性等进行了初步研究。

Add 4 g of synthetic detergent NO.3,0.15 g of bleaching activator and 1 g of sodium peroxoborate tetrahydrate into 1000m1 of water, disperse them completely by agitator(1000 r.p.m. or over) carry out this operation at 25C±5C for 10min and prepare the test liquid

加入4克，合成洗涤剂三号， 0.15克的漂白活化剂和1克的钠硼酸盐四成1000m1水，驱散他们完全是由搅拌器（ 1000转或以上），进行这项手术，在25 ℃± 5 C条，为10分钟，并准备测试液

Keywords: laccase; Laccase/Mediator system; kraft bamboo pulp; totally-chlorine-free bleaching; veratryl alcohol

动力学。关键词：漆酶；漆酶/介体系统；硫酸盐竹浆；TCF漂白；黎芦醇

The electrochemically mediated bleaching of aspen kraft pulp with violuric acid as the mediator was investigated in this paper.

结果表明，采用钌钛涂层电极为阳极，不锈钢为阴极，以紫脲酸为介体对杨木硫酸盐浆进行无隔膜电化学处理，能有效脱除纸浆中的残余木素，而浆的黏度损失较小。

Zooxanthellae isolated from these two corals also had different bleaching rate in cultured condition under light. Those of A.

在简单轴孔珊瑚的白化过程中，各类不同的色素会因为环境的压力而有不同的变化趋势。

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。

At this stage the coral is still alive, and if the water cools, the coral can regain its zooxanthellae.[28] If the water does not cool within about a month, the coral will die of starvation. Australia experienced its warmest year on record in 2005. Abnormally high sea temperatures during the summer of 2005-2006 have caused massive coral bleaching in the Keppel Island group.

在这个阶段，珊瑚仍是活的，如果水温下降，珊瑚可以重新获得共生藻；如果约一个月内水温未下降，珊瑚将死于食物短缺。2005年是澳大利亚史上气温最高的一年，2005与2006年夏天异常的高温导致了凯珀尔岛群的珊瑚大量白化。

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。

In order to remove the impurity accreted on the cotton and flax fiber, such as pectin, lignin and so on, the floret silk/flax and floret silk/cotton fabric were in need of scouring and bleaching, and we use W100 and H_2O_2 to treat them.

为了去除棉、麻纤维上的果胶、术质素和色素等杂质，提高染色的效果，我们采用了精炼剂W100对坯布进行精练，然后用双氧水漂白，收到了较好的效果。

The effect and mechanism of alkali-treatment, the acidifying bleaching mechanism, the interactions and mechanism between electrolytes, food gums and agar during the process of agar from Gracilaria species were profoundly studied in this thesis, the mechanism of processing high strength agar from Gracilaria was explored.

本文对江蓠加工琼胶过程中的碱处理，酸化漂白，琼胶与电解质、食品胶之间的相互作用及作用机理等方面进行了深入的研究，探讨出江蓠加工高强度琼胶的机理。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。