shielding constant

例句：

1. 1. The shielding constantof the material is crucial for its performance.
   该材料的屏蔽常数对其性能至关重要。
2. 2. Theconstants of the electromagnetic field areessential for understanding its behavior.
   电磁场的常数对于理解其行为至关重要。
3. 3. The constants of the new model have been adjustedto better fit the data.
   新模型的常数已被调整以更好地适应数据。