放高 meaning in English
excess height
Examples
- Characteristics of ground pressure behavior in hard thick - top - coal fully mechanized caving face
坚硬煤层大放高综放面矿压显现特点 - Fully mechanized high top coal caving mining technology in hard coal seam of honghui no . 1 mine
红会一矿坚硬煤层大放高综采放顶煤开采技术