漂白

In this paper the pulping of wheat straw with Na〓SO〓, HCHO and AQ was studied. The objectives of this study are to increase pulp yields, physical strength and bleachability and to produce lignosulfonate which has excellent solubilities and surface activities.

本研究采用亚硫酸钠、甲醛和蒽醌对麦草制浆，目的在提高草浆得率、物理强度和漂白性能的同时，得到水溶性和表面活性较好的木素磺酸盐，为草木素在工业上的应用开辟一条道路。

After taking into account the economic factors of pulp yield and bleachability, active alkali charges of 17.5% to 25.0% were applied in a typical kraft cooking which provides yields of 43.6% to 30.5%, with kappa numbers ranging from 28 to 10. The optimal cooking conditions called for an AA of 20.0% to 22.5%.

考量纸浆收率及漂白性等经济成本因素，二年生之白千层经17.5%~25.0%之活性碱蒸煮后，其纸浆收率约在43.6%~30.5%，卡巴值为28~10，最佳蒸煮条件之用碱量以20.0%~22.5%为宜。

The OpQP bleaching result indicated that the H2O2 reinforced delignification can improve the bleachability and brightness stability of the pulp,but reduce slightly the strength of the paper.

麦草浆OQP/OpQP全无氯漂白对比研究得出，H2O2强化氧脱木素能够提高纸浆后续可漂性能并提高白度稳定性，而纸浆的物理强度略有降低。

The alkali dosage depends mainly on the constituents and property of material and the quality requirements for pulp: more alkali dosage will speed up cooking process, reduce the hardness of pulp and improve the bleachability of pulp; but excessive alkali dosage will lower the pulp yield and physical intensity, while too less alkali dosage will result in harder and darker pulp, uneasy to bleach, too much screenings, and even extending cooking time cannot guarantee the reaction of delignification.

用碱量主要取决于原料的组成和性质及对纸浆的质量要求：加用碱量有利于加快蒸煮速度降低纸浆硬度和提高纸浆的可漂性：但过高却会降低纸浆得率和物理强度，如过低时，成浆较硬而色暗，不易漂白而且筛渣多即使延长蒸煮时间也难以保证脱木素反应进行。

Two-year-old plantation-grown Melaleuca leucadendron from Vietnam was evaluated for its pulpability, including aspects of fiber morphology, chemical analyses, pulp properties, bleachability, and paper qualities, to establish the suitability of the material as a potential source for kraft pulping.

本文探讨速生越南产二年生白千层木材之制浆适性，进行纤维形态性质、化学组成分析及由制浆性质、漂白性及纸浆品质各项观点来评估其做为制浆原料之适用性。

Biobleaching and following ECF,TCF bleachings with compound xylanase and pure xylanase separately of triploid Chinese poplar KP were studied to compare the improved bleachability.

用复合木聚糖酶和纯木聚糖酶分别对三倍体毛白杨KP浆进行了单段预处理及后续ECF、TCF漂白，对比研究两种木聚糖酶对三倍体毛白杨KP浆的可漂性改善效果和白度提高程度。

Consists of baled groundwood free cuttings, shavings or sheets of untreated uncoated bleachable coloured envelope paper.

彩色信封新边角料：彩色信封的边角料，纸边和信封纸，打包供货。这类纸张大多是用漂白亚硫酸盐浆制得，染色但没有经过表面处理。

According to the report, colour is important, and too many are now bleached too white.

据报道，要达到最完美笑容颜色很重要，但是现在的牙齿漂白的太严重了。

According to the report, colour is important, and too many are now bleached too white.

根据报告，颜色是很重要的，但现在不少人为拥有明眸皓齿不惜过渡漂白。

I do not deny that your No. 33 bleached cotton is top quality.

意思为我不否认你的33号漂白棉花质量是顶级的。

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。