-
1 yieldable arch
Горное дело: податливая арка -
2 yieldable arch
-
3 arch
арка, свод; антиклиналь; зависание; закрепить сводом; придать форму арки•
- I-arch
- natural arch
- pressure arch
- rail arch
- straight-sided arch
- three-piece arch
- yieldable arch -
4 yieldable steel arch
Горное дело: податливая металлическая арка
См. также в других словарях:
coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium