Chemical pretreatment technology of sheet and its fittings was discussed before they were sprayed lacquer.
讨论了薄板及其配件在喷漆前的化学预处理工艺方法。
Experiments were made to determine about technological process of chemical pretreatment, phosphatization liquid and technical condition.
通过优化实验，确定了化学预处理的工艺流程、磷化液组成及工艺条件。
A treatment of copper phthalocyanine wastewater through physical and chemical pretreatment and bio - chemical treatment process is described.
通过试验研究，提出了一种物化—生化法处理铜酞菁颜料废水的新工艺。
The experiment on quick composting of rice straw through chemical pretreatment and combined chemical-biological treatment was conducted in lab.
采用实验室培养发酵、谱学分析、盆栽试验的方法，研究了化学前处理、化学-生物联用处理对稻草腐熟效果的影响。
The methods could be divided into physical pretreatment methods, chemical pretreatment methods and interlayers method according to their principles.
按其原理来分，预处理方法可分为物理预处理法、化学预处理法以及中间层法。
It also presents recent status and prospects of pretreatment processes such as roasting, pressure oxidation, biooxidation and chemical pretreatment.
同时论述了焙烧氧化、热压氧化、生物氧化和化学氧化等难选冶矿石预处理技术的现状及发展趋势。
The results of study show that: if the rolling chemical pretreatment solution C50 is used, the products with both high corrosion resistance and good bonding can be obtained.
实验结果表明：采用辊涂法预处理液c 50可获得耐蚀性、涂装性及加工性均优的合金化热镀锌有机涂层钢板。
Decolorization treatment of eucalyptus CTMP chemical pretreatment effluent with micro-electrolysis method was studied in the paper, and factors influencing the treatment effect were discussed.
本论文研究了桉木ctmp化学预处理废液的微电解脱色处理效果，并探讨了影响处理效果的几个因素。
The results showed that during the chemical pretreatment the guaiacyl unit was more readily to be sulfonated and dissolved, and there were new conjugated carbonyl and quinoid structure formed.
结果表明，预处理过程中愈创木基易于磺化和溶出，木素中有新的共轭羰基和醌型结构产生。
The biggest difficulty is chemical deposition of copper of PTFE activation pretreatment, is also the most crucial step.
其最大的难点是化学沉铜前的聚四氟乙烯活化前处理，也是最为关键的一步。
The physical, chemical and biological pretreatment, enzyme saccharification, alcohol fermentation technology and research development were stated in this paper.
该文简述了纤维素物理、化学、生物预处理、酶糖化、发酵酒精生产工艺及研究进展。
Detailed is the powder-coating process and principles of steel pipe by static electricity as well as the process of both chemical and mechanical pretreatment on steel pipe surface.
详细介绍了钢管粉末静电涂装生产工艺和原理以及对钢管表面进行化学、机械的预处理工艺。
The criteria for tooth selection dictated no pretreatment with a chemical agent such as alcohol, formalin, or hydrogen peroxide, or any other form of bleaching.
牙齿挑选标准规定未做过像酒精、甲醛、过氧化氢和其他漂白剂等化学用品预处理。
The pretreatment condition of sample, chemical interference, identity of viscosity for test solution and its blank solution, background absorption interference and detection limit were all studied.
对样品处理条件、化学干扰、试液粘度与空白溶液粘度的一致性、背景吸收干扰及检出限进行了考察。
The pretreatment conditions of sample, chemical interference, detection limit and characteristic concentration were studied.
对样品处理条件、化学干扰、检出限及特征浓度进行了考察。
Chemical etching and high temperature heating were used for pretreatment of substrates.
衬底预处理采用化学刻蚀和高温处理。
This paper studies on the pretreatment with DTPA before oxygen delignification for the NS-AQ high yield chemical pulp of aspen.
对杨木ns AQ法高得率化学浆氧脱木素前的DTPA预处理进行了研究。
Residual lignins from sodium sulfide pretreatment kraft pulping were studied by chemical and spectral methods. Sodium sulfide pretreatment can promote sulfur combining chemically with lignin.
用化学和波谱分析研究了硫化钠预处理硫酸盐制浆中残余木质素的化学结构特性。
Presently, the pretreatment methods of lignocellulose covered physical method, chemical method, physical & chemical method, and biological method.
目前，对木质纤维素原料的预处理方法主要有物理法、化学法、物理化学法、生物法。
Effect of pretreatment with crude xylanase from Penicillium ZCF57 on wheat straw chemical pulpability and pulp bleachability was studied.
研究了青霉产木聚糖酶预处理对麦草碱法化学制浆和漂白性能的影响。
The said coating uses supersonic pretreatment of basilar plate and is prepared by the technical measure of artificial chemical gas-phase sedimentation.
该膜采用基板超声预处理，在优化工艺条件下人工化学气相沉积等技术措施制备。
Influences of factors such as pretreatment, chemical conversion film on the quality of coating are analyzed.
分析了前处理、化学转化膜等因素对涂膜质量的影响。
To handle all the chemical testing pretreatment tasks.
负责所有化学测试前处理工作。
The study includes the adjustment and improvement of chemical measurement system and pretreatment methods of sample, and test object is erythromycin.
研究内容包括化学测定体系的调整改进和样品前处理方法的研究，检测对象为红霉素。
The study includes the adjustment and improvement of chemical measurement system and pretreatment methods of sample, and test object is erythromycin.
研究内容包括化学测定体系的调整改进和样品前处理方法的研究，检测对象为红霉素。
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