oxygen contamination 中文意思是什麼
oxygen contamination
解釋
氧污染- oxygen : n. 【化學】氧，氧氣。
- contamination : n. 污染；污穢，污物；（語言的）交感，感染錯合；（文章，故事等的）混合，拼湊。 ideological contamination精神污染。
-
Our focus and our direction is to become the most customer - friendly, low cost provider of high quality copper and copper alloy products while generating an above average return on investment for our owners. oxygen - free high conductivity copper is produced by the direct conversion of selected refined cathodes and castings under carefully controlled conditions to prevent any contamination of the pure oxygen - free metal during processing. the method of producing ofhc
江銅銅材有限公司可以生產各類品種規格的銅及銅合金產品，公司的主導產品-無氧銀銅合金材料和銀銅合金異型排，廣泛應用於家電汽摩配電動工具等產品的各種電機換向器，該產品生產歷史悠久，技術先進，質量可靠，深得用戶好評，市場佔有率在國內名列前茅，並逐年上升。 -
Low dissolved oxygen can be harmful to most aquatic life, whereas high 5 - day biochemical oxygen demand and ammonia nitrogen levels indicate the presence of organic pollution and sewage contamination
溶解氧含量過低會危害大部分水生物的生存，而五天生化需氧量和氨氮水平則顯示河溪受有機物和生活污水污染。 -
Development in research on electrochemical reaction resulting in oxygen contamination by slag in submerged arc welding process
熔渣對焊接過程電化學致氧研究進展
分享友人