The composite armor has good capabilities in defending armor-piercing shell, shrapnel, radiation, etc. It was the ideal material to manufacture the tank armor vehicles protection.

复合装甲具有良好的防穿甲、抗弹片和防辐射等性能，是制作坦克装甲车辆防护的理想材料。

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The source, damage, evaluation and protection about electromagnetic radiation are introduced. Research status about protection material for electromagnetic radiation in home is proposed.

介绍了电磁辐射的常见辐射源及其危害、评价、防护方法，阐述了国内电磁辐射防护材料的最新研究动态。

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It is obvious that this study provide significant clinic radiation dose data and material radiation protection tactic for doctors and nurses of clinic orthopaedics operating room.

可见，通过本论文的研究，为临床骨科手术室医护人员的防护提供了一定意义的临床辐射剂量学数据和具体的放射防护策略。

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