其次，与母合金冶炼所用原材料质量差、脱氧不良以及粉末处理的环境污染有关。
Moreover, some of them are related to the inferior raw materials used and poor deoxidation in smelting of master alloy as well as to the contamination in powder treatment.
详细分析了2 萘酚生产废水特性，采用前置吹脱氧化，离子交换组合工艺处理并讨论了过程影响因素。
The properties of 2 naphtholwastewater were studied in details in this paper, the wastewater was characterized by the strong acidity, high buffer capability and concentrated salt.
方法：十二烷基硫酸钠和脱氧胆酸钠联合处理获取脱细胞猪动脉支架。
METHODS: Decellularized scaffold was prepared by treating fresh porcine artery and heart valves with sodium deoxycholate and sodium dodecyl sulfate.
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