Studies of recovering tin and nitric acid from the spent solder stripper;
废退锡液中硝酸和锡的综合回收
The basic reason for instability of spent solder stripper is analyzed.
分析废退锡液不稳定的根本原因,通过考察硝酸浓度对溶液氧化性的影响及C l-、甲基烷基磺酸对Sn2+的稳定作用,来寻找使废退锡液稳定的因素。
Nowadays, the approach to treating spent solder stripper includes neutralizat-ion,chemical sediment, electrolysis and so on .
目前,废退锡液的处理方法有中和法、化学沉淀法、电解法,或用来制备三水合锡酸钡。
Analysis the Theory Basis of "Evolution in Usage,Degeneration without Usage" of Sport Organs from the Theory of Dissipative Structure;
从耗散结构理论分析人体运动器官“用进废退”的理论基础
Being in the process of passing out of use or usefulness; becoming obsolete.
逐渐废弃不用的正处于废退或无用的过程；正成为废品的
asset acquisition and retirement budget
资产购置和退废预算
Empty Trash on exit
在退出时清空"废纸篓"
An experiment on the further treatment of the acidiferous waste water was carried out, and it is proved that the waste water can be recycled.
对含酸废水进行了进一步处理 ,实验证明 ,含酸废水可循环利用。
Fifth, efforts have been stepped up to save energy and reduce consumption. The capability to treat waste gas, wastewater and industrial residue (the " three wastes" ) has been enhanced and the comprehensive utilization rate of these materials has been increased.
五是大力推进节能降耗，提高废气、废水、废渣“三废”处理能力和综合利用率。
Comprehensive Reclamation and Utilization of Waste to Promote the Construction of the Ecological Environment;
废料综合再生利用,促进生态环境建设
Multi-Usage of Waste Rubber;
促进废旧橡胶综合利用,发展橡胶工业
Conducting Innovative Education of Distinctive Features by Exploiting Old Instrument;
利用废旧仪器进行特色化的创新教育
Reformation for Hot Water System by Using Waste Heat in the Gangue Power Plant
利用矸石电厂废热进行热水系统改造
The research and development of disinfection technology in wastewater treatment
消毒技术处理废水的研究与应用进展
Study on alcoholysis of waste Poly(ehtylene terephthalate) by microwave method
应用微波法对废PET进行醇解的研究
loss on property retired
财产报废损失;财产退废损失;资产废置损失
repel an attack [the assailants]
击退进攻[进攻者]
Prevent the misuse of obsolete documents, which shall be marked clearly.
防止作废文件的误用,对这些文件进行醒目的作废标记.
Advances in Research on Treatment of Heavy Metal Ions Wastewater by Agricultural Waste
利用农业废弃物处理重金属离子废水的研究进展
Application Research Progress of Industrial Solid Waste in Industrial Wastewater Treatment
工业固体废弃物在工业废水处理中的应用研究进展
Please throw your waste paper in the basket.
请把废纸扔进废纸篓里。
