Second, use each kind of shielding material.
二是采用各种防护材料。
The conductive fabric is a kind of important new material or product for electromagnetic shielding.
电磁波屏蔽织物是现代电磁屏蔽材料中不可或缺的一种新型产品。
Shielding performance and test methods of protection material against X-rays.
X射线防护材料屏蔽性能及检验方法。
Shielding performance and test methods of protection material against X-rays.
X射线防护材料屏蔽性能及检验方法。
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