powder andexplosive

• 火炸药

powder andexplosive的用法和样例：

例句

1. The paper describes an accurate positioning method of measuring the powder transient spectra and the data procoessing of spectrum bri ghtness.
   介绍一种火炸药在瞬态光辐射参数测量中的精确定位方法以及绝对光谱亮度参数的数据处理。