计算机硬件 计算机工程制造 释文 pin force 插针压力
- coal production
- coal prospecting
- coal pulverized system
- coal pulverize maintenance
- coal pyrolysis
- coal quality analysis
- coal quality evaluation
- coal quality physical testing
- coal rank
- coal reaction
- coal remote sensing geological survey
- coal reservoin resilience
- coal reservoir
- coal reservoir gas saturation
- coal reservoir permeability
- coal reservoir pressure
- coal resistance to heat
- coal resources of China
- coal-rich zone
- Coalsack Dark Nebula
- Coalsack Nebula
- coal sample
- coal sample for testing washability
- coal seam
- coal seam deformatiom