Among the following defects, ( ) belongs to the point defect. A: positive edge dislocation B: Frenkel defect C: negative edge dislocation D: screw dislocation

‌以下哪个是增强技术遵循的准则? ‌ A: Restricting and hindering dislocation motion renders a material harder and stronger. B: Restricting and hindering dislocation motion decreases the hardness of a material. C: Restricting and hindering dislocation motion are not related to the hardness of a material. D: Restricting and hindering dislocation motion are not related to the toughness of a material.

以下哪个是增强技术遵循的准则? A: Restricting and hindering dislocation motion renders a material harder and stronger. B: Restricting and hindering dislocation motion decreases the hardness of a material. C: Restricting and hindering dislocation motion are not related to the hardness of a material. D: Restricting and hindering dislocation motion are not related to the toughness of a material.

‏点缺陷包含的类型 ‌ A: Vacancy B: Interstitial C: Dislocation D: Boundaries

点缺陷包含的类型 A: vacancy B: interstitial C: dislocation D: boundaries

( ) and<br/>Interstitial are the two types of point defect. A: Dislocation B: Voids C: Vacancy D: Twin<br/>interface

‏下列属于热缺陷的有：‏ A: Dislocation B: Boundary C: Frenkel defect D: Schottky defect

下列属于热缺陷的有： A: Dislocation B: Boundary C: Frenkel defect D: Schottky defect

Vacancy<br/>and ()are<br/>the two types of point defect. A: Dislocation B: Voids C: Twin<br/>interface D: Interstitial

Vacancy<br/>and ()are<br/>the two types of point defect. A: Dislocation B: Voids C: Twin<br/>interface D: Interstitial