| 1. | Heavy metals, such as iron and lead, make good gamma-ray shields because of their high density .
重金属像铁、铅等由于密度很大，都是防护射线的最好的防护材料。 |
| 2. | Rapid rise fire tests of protection materials for structural steel
结构钢防护材料的快速升温燃烧试验 |
| 3. | Shielding performance and test methods of protection material against x - rays
射线防护材料屏蔽性能及检验方法 |
| 4. | Greater protection means more expense and more massive protective materials
更完善的保护通常也代表更大的花费和更厚实的防护材料。 |
| 5. | Standard for safety for rapid rise fire tests of protection materials for structural steel
结构钢防护材料的快速升温燃烧试验的安全要求 |
| 6. | Standard for safety evaluation of equipment and protective materials in drinking water system
生活饮用水输配水设备及防护材料的安全性评价标准 |
| 7. | Testing of materials for radiation protection against x - rays and gamma - rays ; x - rays up to 400 kv
对射线和射线的防护材料的检验. 400kv以下射线 |
| 8. | Industrial packaging . greaseproof , waterproof , flexible , self - adhesive protection materials . specifications and tests
工业包装.不透水和油的自动粘着软防护材料 |
| 9. | “ anti - irradiation cover glass for astrospace ” is a protection material for silicon solar battery on space craft
空间用抗辐照玻璃盖片是一种用于太空飞行器上硅太阳能电池表面的防护材料。 |
| 10. | Through many project applications and long - term performance testing , it is proved that the polymer cement mortar is one kind of ideal concrete patching and shielding material
经过多年工程应用和长期性能测试表明，聚合物水泥砂浆是一种理想的混凝土修补防护材料。 |
