本文综述了纸浆的氧气漂白、臭氧漂白、过氧化氢漂白、光催化漂白、过氧酸漂白中碳水化合物的保护措施。
In this paper, the protection measures of carbohydrate during pulp TCF bleaching, such as oxygen, ozone, peroxide, peracid and photochemistry reaction of bleaching, were summarized respectively.
本文介绍了过氧酸漂白中不同过渡金属离子的作用、机理及控制，并提出一些控制过渡金属离子作用的新的有效的方法。
This paper summarizes the effect of different transition metal ions on peracid bleaching and their respective mechanism, and introduces some methods of controlling transition metal ions.
柠檬酸是一种天然温和的漂白物，并对清洁和去味有奇效。
The acid in the lemon juice is a natural mild bleach and is effective in cleaning and deodorizing.
结果发现，经漂白后的牙釉质面呈轻度类似于酸蚀后的改变。
The results demonstrated that the enamel surfaces after bleaching were something like having been etched.
因为它的结构和相对稳定性，甚至在与酸、碱、汽油、石油或者漂白剂混和的情况下，DNA鉴定还是可以进行。
Because of its structure and relative stability, DNA can be tested even after mixture with acids, bases, gasoline, oil, or bleach.
近年来又发现了果胶酸裂解酶还可用于植物病毒的纯化、纸浆漂白和以纺织品的生物精炼等。
It was also found recently that the pectate lyase could be used for the purification of plant virus, bleaching of paper pulp and the bio-refining of textiles etc.
以低卡伯值硫酸盐麦草浆为原料，经过酸预处理、螫合预处理后，浆料进行H2O2强化臭氧漂白工艺比较。
The kraft low-kappa number wheat straw pulp was bleached by ozone with the addition of H2O2 after acid pretreatment and chelating pretreatment.
本文研究了紫胶树脂在漂白和脱氯过程中分子量、热寿命、酸价、碘价、羟基值和氯含量的变化情况。
The changes of molecular weight, life under heat, acid value, hydroxyl value and chlorine content of lac resin during bleaching and de-chlorinating processes have been studied.
研究了稻草亚铵浆的氧碱漂白、酸预处理和过氧化氢补充漂的三段漂白。
This paper studied the TCF bleaching of rice straw ammonium sulfite pulping, which contains of oxygen-alkali bleaching, acid treatment and hydrogen peroxide bleaching.
根据印染加工的特点，分别测定了大豆蛋白质纤维的热稳定性、耐酸耐碱性、吸酸吸碱量、耐氧化还原性及不同漂白剂的漂白效果。
The thermal stability , acid-resistance, alkali-resistance, oxidation-resistance, acid and alkali absorption of the soybean protein fibers were determined according to printing and dyeing process.
对于重度着色氟牙症，涂膜前进行酸蚀，可明显加强涂膜的漂白作用。
Preoperative etching improved the effect of the varnish in severe discolored fluorine teeth.
对于重度着色氟牙症，涂膜前进行酸蚀，可明显加强涂膜的漂白作用。
Preoperative etching improved the effect of the varnish in severe discolored fluorine teeth.
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