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- pretreatment before bleaching 漂前预处理
- The effect of the auxiliary agents pretreatment before H2O2 bleaching and the activation on H2O2 bleaching of high yield whole stalk kenaf pulp is investigated. 研究了几种助剂在红麻全秆高得率浆H2O2漂白前的预处理和H2O2漂白中的活化效果。
- Do not use on silk, wool, nylon, unfast colours and leathers. Test material before bleaching. 不宜用于丝绸、毛织品。尼龙、易褪色之衣物及皮革，漂白时请先以少量溶液测试。
- The machine can also be refurbished as a large metal surface, rust, spraying pretreatment before. 本机还可以作为大件金属表面翻新、除锈、喷涂前的预处理。
- APMP pulping conditions of reed were studied in this paper,the effects of the process conditions of pretreatment before refining on the pulp qualities were emphasized. 对芦苇APMP制浆工艺条件进行了探讨,研究了浸渍预处理对成浆质量的影响。
- Pulping conditions of APMP using mixed hardwoods were studied in this paper,which mainly focused on the process conditions of pretreatment before refining. 本文对混合阔叶木APMP制浆工艺条件进行了探讨,着重研究了浸渍预处理各因素和打浆度对成浆质量的影响。
- pretreatment before biochemical treatment 生化前预处理
- As a matter of fact, I've never been there before. 事实上我从未到过那儿。
- We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
- Refinishing process of coatings for nose of sartorius is introduced. Improvement methods are proposed aiming at solving problems occurred in pretreatments before finishing. 介绍针车机头涂层翻新工艺,针对涂装前处理中存在的质量问题,提出改进措施。
- The clerk marked up his daybook before going home. 办事员在回家前记好当天的日记帐。
- Let's dunk in the pool before dinner. 我们饭前到池塘里泡一会儿。
- I was inspired to work harder than ever before. 我受激励比以往任何时候都更加努力地工作。
- The fox ran away before the hunter shot it. 那只狐狸在猎人向它射击前跑掉了。
- Let's clean down the board before we paint it. 让我们在上漆以前把这块板洗干净。
- It seemed an eternity before news of his safety reached her. 他平安的消息到达她那里之前，那段时间似乎是无限漫长的。
- Let's collect the sap before its consolidation into a hard mass. 让我们在树液坚固成团之前将之收集起来。
- Oxygen bleaching was used in soybean/cotton blended knitgoods pretreatment. 根据大豆蛋白纤维的特性,采用氧漂工艺进行前处理;
- I was roped in for this excursion before I knew it. 我不知不觉被拉来参加了这次远足旅行。
- I want to catch forty wink before the guest arrive. 我想在客人到达之前，先打个盹儿。
