The fluorescence quenching of these emissive compounds in solution by halogen anions was studied carefully.研究了它们在溶液中的荧光被卤素离子猝灭的问题.Immediate quenching and tempering process of steel T 10 after low temperature salt bath ch...
针对常规抽油泵使用中易发生磨损、砂卡和脱扣的弊端,研制了高效 防 砂抽油泵.A high - efficiency anti - sand pump is developed for oil recovery in sandy wells.半导体脱扣器电路与智能脱扣器电路有明显的差异性,有各自的优点.There is a difference between semiconductor release circuit and intel...