volume ionization density

例句：

1. 1. Themeasurement of this parameter is crucial for the understanding of the material's behavior in high-voltage electric fields.
   测量这一参数对于理解材料在高压电场中的行为至关重要。
2. 2. In the study of plasma physics, the volume ionization density plays a key role in determining the properties of the plasma.
   在等离子体物理学研究中，体积离子化密度在确定等离子体特性方面起着关键作用。
3. 3. The density of the volume ionization in the sample was found to be higher than that in the background gas.
   样品中的体积离子化密度高于背景气体中的密度。