| 1. | In heterogeneous anisotropic materials the thermal diffusivity cannot be described by a single number .
在各向异性的非均质物质中，热扩散率不可能用一个简单数字来表达。 |
| 2. | In other words the important diffusive motion is migration of the radical segment retarded to the low diffusivity of the whole chain .
换言之，重要的扩散移动是自由基链段的迁移减慢为低扩散系数的整个分子链的迁移。 |
| 3. | Limiting the extraction of great amount of heat from the underground even more is the low thermal conductivity and low thermal diffusivity of rocks .
由于岩石的热导率和热扩散率都比较低，更加限制了地下热能的大量抽取。 |
| 4. | Test method for thermal diffusivity of hardmetal carbide
硬质合金热扩散率的测定方法 |
| 5. | Study on mass diffusivity of concrete under isothermal condition
等温条件下混凝土质扩散系数研究 |
| 6. | Standard practice for calculating thermal diffusivity of rocks
计算岩石的热扩散系数的标准实施规范 |
| 7. | Diffusivity of chloride in concrete in different stress states
不同应力状态下混凝土抗氯离子侵蚀的研究 |
| 8. | Determination of diffusivity of dyes
染料扩散性能的测定 |
| 9. | Standard test method for thermal diffusivity of solids by the flash method
闪光法测定固定导热性的标准试验方法 |
| 10. | Effective turbulent diffusivity
有效湍俩散系数 |
