YI yellow index

3 of kappa number;OP and OAP sequences bleached acidic sulfite eucalyptus pulp, the PC number of the bleached pulp was small, the bleached pulp brightness was stable.

3;OP流程和OAP流程漂白酸性亚硫酸盐桉木浆所得终漂浆的返黄值小,白度稳定。

The causes of yellowing in the medium layer of paper board were analysed by the comparison of several paperboard samples from different mills.

通过对不同生产厂家几种纸板的对比实验,分析得到了纸板芯层端面返黄的产生根源,发现纸板芯层中BCTMP浆的存在会导致纸板芯层的返黄问题,提出了相关的解决方法。

The yellowing of deinked pulps from mixed office wastepaper(MOW) bleached with H 2O 2(P) and H 2O 2_Na 2S 2O 4(PY) respectively is studied with natural aging and oven aging in this paper.

本文采用人工老化和自然老化对混合办公废纸脱墨浆H2 O2 (P)与H2 O2 -Na2 S2 O4(PY)漂后返黄进行了研究。

Among them,LIP 14,a LIP negative mutant of Phanerochaete chrysosporium which was mutated in our own lab,was the best to suppress yellowing (depression rate 27.

用各种木材腐朽真菌及粗酶液处理化机浆 ,检测其对提高纸浆白度和抑制纸浆热返黄的作用。

Studies on mechanism of brightness reversion and controlling is also introduced.

对CTMP制浆过程中的汽蒸、挤压、化学药品浸渍、返黄及控制机理及在国外的实验研究进行了介绍 ,对CTMP原料使用、浆料应用、废水处理的情况也进行了简要的阐述 ,比较了CTMP和KP、TMP的浆料性

The dosage of whitening agent in coating color and an investigation to color reversion of ivory board;

增白剂在涂料制备中的用量及对白卡纸返黄的研究

Synthesis and Application of the Yellowing Inhibitor Amino-TEMPO;

返黄抑制剂多胺基TEMPO的合成和应用

Inhibition of High-yield Pulp and Chemical Pulp by Enzymes Treatment;

酶处理抑制高得率浆和化学浆返黄的研究

The Analysis of Succus Bambusae Component and Its Impact on the Bleaching and Back to the Yellow;

竹沥液成分测定及对漂白、返黄性能影响的分析

Study on the Effect of Metal Ions on Bleaching and Colour Reversion of Bamboo High Yield Pulp;

金属离子对竹子高得率浆漂白及返黄的影响

Study on Novel Hindered Amine Photo-Yellowing Inhibitor for Chem-Mechanical Pulp;

新型受阻胺类化机浆光返黄抑制剂的研究

Decreasing Reversion of ECF Hardwood Pulp with H_2O_2 as Final Bleaching Stage

采用H_2O_2终段漂降低阔叶木ECF漂白浆的返黄

Study on the Inhibiting Yellowing Technique and Mechanism of Bambusa Chungii APMP Pulp;

粉单竹APMP浆返黄抑制技术的研究及其机理的初步探索

Synthesis of a Novel Yellowing Inhibitor and Study of Its Use for High-Yield Bamboo Pulps;

新型返黄抑制剂的合成及其在高得率竹浆中应用的研究

Study on the Structural Properties of MWL Isolated Form Bleaching and Yellowing of Bamboo SCMP Pulp;

竹子化机浆过氧化氢漂白及返黄过程中木素结构变化的研究

Synthesis of Novel Hindered Amine Photo-yellowing Inhibitor and Its Application in Bambusa Chungii BCTMP Pulp

新型受阻胺类光返黄抑制剂的合成及在竹子化机浆中的应用

Once gone, the yellow crane will never on earth alight; only white clouds still float in vain from year to year.

黄鹤一去不复返,白云千载空悠悠

Application of precipitation process of returning slurry in production of yellow cake

返晶浆沉淀工艺在黄饼生产中的应用

The three students begin driving back to the city in the bright yellow convertible.

这三个学生开始乘鲜艳的黄色敞篷车返回市内。

Arrive to Salt Lake City in the evening and have a pleasant flight back to hometown.

搭机返回家园结束七天精彩而丰富的黄石公园、统巨石假期。

Arrive to Salt Lake City and have a pleasant flight back to hometown.

午后前往盐湖成机场，搭机返回家园，结束四天精彩而丰富的黄石公园假期。

Repatriation and Return Operation 1997 [UNHCR in Bosnia and Herzegovina]

1997年遣返和回返行动

shuttle train

[美]短程往返火车

on the outward/homeward voyage

在出航[返航]途中