| 1. | Test program for the ageing properties of piezoelectric ceramics
压电陶瓷材料老化性能试验规程 |
| 2. | Synthetic materials aging and application
合成材料老化与应用 |
| 3. | Test methods for resistance to weathering of building waterproofing materials
建筑防水材料老化试验方法 |
| 4. | Test methods for resistance to weathering of building water proofing materials
建筑防水材料老化试验方法 |
| 5. | Synthetic materials ag
合成材料老化与应用 |
| 6. | Terms and definitions used on ageing of materials ; basic terms and definitions
材料老化用术语和定义.第1部分:基本术语和定义 |
| 7. | Terms and definitions used on ageing of materials ; examples concerning polymeric materials
材料老化用术语和定义.第2部分:聚合材料相关实例 |
| 8. | Structures are always subjected to various adverse factors during its long - time service , such as fatigue , environmental corrosion , material aging , etc . these factors will bring to structural damage accumulation
在结构长期服役期间，疲劳、环境腐蚀和材料老化等因素的作用会引起结构损伤的累积。 |
| 9. | The aging properties of lead metaniobate piezoelectric ceramics have been investigated . the result indicated that the additives accumulate in grain boundary caused the material having good aging properties
对偏铌酸铅压电陶瓷的老化性能作了一些探讨，实验表明，掺杂改性后的偏铌酸铅显微结构发生了变化，晶界处有杂质分凝使得该材料老化性能好。 |
| 10. | Based on an advanced formula , the plastic parts are made of injection - molded , high - strength engineering plastic pc by numerical control equipment , therefore effectively prevent products from aging caused by coldness , heat , oxygen and ultraviolet radiation
整套接头筒塑件采用科学配方的高强度pc工程塑料，经过数控设备注塑成型，能有效地阻止大自然中冷热氧和紫外线引起的材料老化，并且具有优良的力学强度。 |
