Features of sodium chlorite bleaching for cotton knits are described.本文叙述了亚氯酸钠对纯棉针织物漂白的特点.Optimum conditions of kraft pulping and single stage hypochlorite bleaching were investigated.研究了桑枝硫酸盐法制浆适宜的工艺条件和单段、两段次氯酸盐漂白工艺条件.T...
All her letters were carefully filed away in folders.她所有的信件都整齐地放在文件夹中。He sorted the materials into their folders.他把材料分门别类放进了文件夹。By insertion of photocopies, all folders can be maintained complete with little extra effort...
The ledgers and account books had all been destroyed.分类账本和账簿都被销毁了.The ledgers had all been destroyed.账簿都被销毁了。To ensure proper maintenance and accuracy of accounting ledgers and subsidiary records.确保会计帐簿完整准确,并妥善保管所有凭证,附件和...
Typical components in such a blend could be isooc'tane, alkylate and catalytic reformate.这种混合物中的典型成份可能是异辛烷, 烷基化合物和催化重整产品.The FCC unit produces large quantity of raw materials for alkylate producing.催化裂化装置还生产大量可以用于生产...