生物学处理过程的另一个好处是它无需加热或冷却，而且无有毒化学品。
Another advantage of the biological system is that it requires no heating or cooling, and no toxic chemicals.
化学处理，例如重铬酸钠溶液，可以促进无氧化膜和杂质不锈钢表面的钝化膜更快速度的生成。
Chemical treatments, such as sodium dichromate solutions, may facilitate the more rapid formation of the passive film on a stainless steel surface already free of scale or foreign matter.
化学镀镍层起泡脱皮会导致无镀层部位的加速腐蚀，在表面处理中是不允许出现的。
Bubbling and peeling on chemical nickel coating cause fast erosion of no coating part. The appearance can't emerge in the surface treatment.
简要介绍了俄罗斯莫斯科钢管厂开发的短顶头和无顶头拔制碳素钢管的化学处理工艺。
The brief introduction concerns the chemical treatment process developed by Moskvosk steel tube Works, Russia for carbon steel tubes drawn with short-plug or non-plug process.
净水器的净水器开始减少了超过140的潜在健康影响的污染物的饮用水和使用UV技术无化学品水处理。
The eSpring Water Purifier reduces more than 140 potential health-effect contaminants in drinking water and uses UV technology to treat water without chemicals.
化学镀镍层起泡脱皮会导致无镀层部位的加速腐蚀，在表面处理中是不允许出现的。
Bubbling and peeling on chemical nickel coating cause fast erosion of no coating part.
电化学水处理技术因其具有多功能性、高度的灵活性、易于自动化、无二次污染等特点倍受国内外研究者的重视。
Electrochemical oxidation technology was highly emphasized by domestic and international researchers for its multifunction, more facility, easily automated and no secondary pollution.
耐腐蚀性强，本产品化学镀镍处理后的表面是一种非晶态镀层，因无晶界，所以抗腐蚀性特别优良（见表一）。
Corrosion resistance, the surface treatment of the product is amorphous coating, without a grain boundary, so particular corrosion resistance(see Table 1).
研究了以硅酸盐和钨酸盐为主的无铬化学处理液在镁合金上所形成的转化膜。
A conversion coating formed on magnesium alloy AM60 with a chromate-free bath mainly composed of silicate and tungstate is studied.
研究了以硅酸盐和钨酸盐为主的无铬化学处理液在镁合金上所形成的转化膜。
A conversion coating formed on magnesium alloy AM60 with a chromate-free bath mainly composed of silicate and tungstate is studied.
应用推荐