The mechanism of electroless nickel deposition in sodium hypophosphite bath is discussed.探讨了次亚磷酸钠体系化学镀镍沉积机理.Electroless copper plating on PET fabrics using hypophosphite as reducing agent was investigated.研究了采用次磷酸钠作还原剂在涤...
The lake is situated at the eastern extremity of the mountain range.湖位于山脉最东端。The situation in Eastern Europe has changed out of all recognition.东欧的形势经历了巨变。There's no mistaking the eastern flavour of the food...那种食物就...