火焰光度测定 meaning in English

flame photometric determination
flame photometry
flame-photometric determination

Workplace air - determination of sodium hydroxide - flame photometric method
车间空气中氢氧化钠的火焰光度测定方法
Chemical resistance of glass used in the production of laboratory glassware - methods for determination of hydrolytic resistance of the interior surfaces of glass containers - determination by flame photometry and classification
制作实验室玻璃器皿用玻璃的耐化学腐蚀性.第4部分:玻璃容器内表面耐水解的测定方法.第2节:火焰光度测定法和分类