该工艺具有成本低、生产周期短、无酸洗污染等优点。
Thetechnology possess the advantages of low cost, short producing and no picklingpollution.
本文介绍的铜制件光亮酸洗钝化工艺，既无有毒的含铬物质，又无氮氧化物污染。
The no pollution bright pickling passivation technique of copper parts introduced in this pa-per, has neither the toxic chromium containing materials nor nitrogen oxide pollution.
实验过程中采用铬酸洗液对实验器皿进行清洗，有效防止环境中邻苯二甲酸酯类物质对样品的污染。
All the vessels are cleaned by chromic acid lotion to avoid the dimethyl (o - ) phthalate in the environment to pollute the samples.
介绍了酸洗工艺及生产过程中废水、废气、废渣等污染物产生的来源。
Pickling process and sources of wastewater, exhaust gas and waste residue were introduced.
LK - 45缓蚀剂可明显降低酸耗和钢耗，改善环境，减小污染，是一种较理想的酸洗液缓蚀剂。
LK-45 addition proved to be desirable for pickling solutions since its application can greatly decrease the acid consumption, and steel loss, improve environment and limit pollution.
所述的焊接方法，采用电阻焊接，焊 接成本低，工艺要求低，而且省去了酸洗过程，避免了环境的污染。
The welding method employs resistance welding, which has advantages of low welding cost, low process requirements, saving the acid-washing process and avoiding pollution to environment.
酸洗液不含硝酸，环境污染小。
The pickling solution has low pollution with no nitric acid.
金属表面的氧化物会造成深加工质量问题，用酸洗去除氧化物的传统方式存在污染环境、成本高等诸多弊端。
Oxides on metal surface will deteriorate quality of deep processing. Using acid pickling to remove oxides is a conventional method, but will pollute environment and increase operating cost etc.
该工艺不仅可降低氯化钡生产成本，同时为解决酸洗废液对环境的污染找到了较好途径。
This technology can not only decrease the manufacture cost of BaCl_2, and also solve the environment polluted by the spent pickling solution.
本发明将酸洗液中有价成分完全利用，无二次污染，环保，降本，终产品纯度高。
The invention makes full use of valuable ingredient, with no secondary pollution, secondary pollution, low cost and high-purity material finished product.
本发明将酸洗液中有价成分完全利用，无二次污染，环保，降本，终产品纯度高。
The invention makes full use of valuable ingredient, with no secondary pollution, secondary pollution, low cost and high-purity material finished product.
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