magnesium dust的用法和樣例：
例句
- Micropowder magnesium oxide is a new high functional fine inorganic material.
超細氧化鎂粉體屬于新型高功能精細無(wú)機材料。 - By adding magnesium powder into the coating of electrode,the sulphurs removal in deposited metal was satisfactory.
通過(guò)理論分析及實(shí)驗，探討了手工電弧焊焊條藥皮中添加金屬鎂粉的脫硫效果。
