... 履行义务中的缺陷 flaws in performance 在材料中的缺陷 discontinuities in materials 在焊缝中的缺陷 discontinuities in welds ...
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利用介电损耗峰随掺杂量的变化，研究了缺陷浓度在掺杂材料中的变化，以此来研究掺杂对铁电性能的影响机制。
The dielectric loss is measured to study the variation of defect concentration in doped ceramics. And the mechanism of doping is analyzed.
准确测定结构材料中缺陷的尺寸是断裂力学和损伤容限设计在工程中应有的前提。
Determining precisely flaw sizes of structural materials is the basis of the application of fracture mechanics and damage tolerance design to the engineering.
在材料的无损检测中，弹性模量及其内耗的变化也是判断材料中是否有缺陷的一个重要指标。
In the nondestructive testing materials, the change of elastic modulus and internal friction is also an important index for judge whether has a defect.
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