selenium steel
常见例句
- Trace arsenic and selenium in chromium-nickel alloy steel was determined by HITACHI Z-2000 atomic absorption spectrophotometer and relative experiment conditions were discussed.
采用日立公司Z-2000原子吸收光谱仪对铬镍钢中痕量砷和硒进行测定并讨论相关的实验条件。 返回 selenium steel