“Brittle fracture”和“Ductile Fracture ”的含义分别是
举一反三
- Brittle materials are approximately considered as those with a fracture strain of less than about( ).
- Which one is incomplete fracture? A: linear fracture B: comminuted fracture C: spiral fracture D: Oblique fracture
- Which of the following is incomplete fracture? () A: Fissured<br/>fracture B: Transverse fracture C: Oblique fracture D: Spiral<br/>fracture
- Bedding joints are must be<br/>___ A: strike fracture B: dip fracture C: oblique fracture D: possible anyone
- Which are corrrect for choosing proppant A: for low permeability formations,the fracture mainly is requires to increases the length B: for low permeability formations,the fracture mainly is requires to increases fracture conductivity C: for medium or high permeability formations,the fracture mainly is requires to increases the length. D: for medium or high permeability formations,the fracture mainly is requires to increases fracture conductivity.