1) Natural air anion bar
天然氧吧
2) Oxygen/Natural Gas
氧-天然气
1.
Study and Application of Oxygen/Natural Gas Cutting Technique;
氧-天然气切割工艺的研究与应用
3) natural ozone
天然臭氧 NO
4) natural oxidized-ore
天然氧化矿
1.
The article introduced the application of natural oxidized-ore for zinc smelting with watermethod,and how to use the oxidzed-ore rationally and economically,It summarized the general technological process,operating conditions and a variety of unit-consumption indication while using the natural oxidized-ore.
概括总结了使用天然氧化矿的一般工艺流程、操作条件以及各种单耗指标。
5) natural antioxidant
天然抗氧剂
1.
In addition, a compound natural antioxidant which improves obviously the stability of the beet red to light and heat was investigated.
采用超滤—纳滤两次分离法,有效地对甜菜红色素分离、精制和浓缩,并应用于生产;产品质量达到国家标准(GB8271-87)和国际标准(FAO/WHO),研制的复合天然抗氧剂,明显提高了甜菜红对光、热的稳定性。
2.
Three kinds of extraction methods of natural antioxidant Catechins reported in papers both at home and abroad are introduced,that is,solvent extraction,resin separation and salt sedimentation.
综述了国内外文献报道的天然抗氧剂茶多酚的三种提取方法——溶剂萃取法、树脂分离制备法和盐沉淀法,简评了各种方法的特
6) natural anaerobic bacteria
天然厌氧菌
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