射线发射光谱 meaning in Chinese

ray emission spectrum

Standard test method for x - ray emission spectrometric analysis of low - alloy steels and cast irons
低合金钢和铸铁的x射线发射光谱测定分析法
Standard test method for nickel on steel for porcelain enameling by x - ray emission spectrometry
用x射线发射光谱法测定搪瓷用钢表面镍沉积量的标准试验方法
Standard practice for sample preparation for x - ray emission spectrometric analysis of uranium in ores using the glass fusion or pressed powder method
使用玻璃熔化或压制粉末法制备矿石中铀的x射线发射光谱分析用样品的标准实施规范