tungsten trioxide meaning in Chinese

三氧化钨

The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content
钨酸铵灼烧法测定三氧化钨量
Method for the determination of tungsten trioxide content in ammonium paratungstate for import export
进出口仲钨酸铵中三氧化钨含量的测定
Methods for chemical analysis of tin concentrates determination of tungsten trioxide content - the thiocyanate spectrophotometric method
锡精矿化学分析方法三氧化钨量的测定硫氰酸盐分光光度法
Methods for chemical analysis of tungsten concentrates - the ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content
钨精矿化学分析方法钨酸铵灼烧法测定三氧化钨量