Which of the following is not chamber blasting? ( )
A: Shallow hole blasting
B: Collapse blasting
C: Discard blasting
D: Loose blasting
A: Shallow hole blasting
B: Collapse blasting
C: Discard blasting
D: Loose blasting
举一反三
- At present, the methods of ore and rock loosening and crushing are mechanical loosening and crushing, blasting, loose and broken method.
- The Nian monster is scared of the red color, firelight and blasting sounds.
- Which of the following is the ore breaking methods?( ) A: Artificial ore breaking B: Mechanical and hydraulic ore breaking C: Rock drilling and blasting D: The other three options all meet the requirements
- Which of the following is the strongest chamber?
- Which of the following means heart chamber? A: vein B: ventricular C: artery D: capillary