大断面 meaning in English
porrible maximum cross－section
Examples
- Construction and timbering of big section winch room
大断面绞车硐室的施工与支护 - Support technology of soft rock roadway with large section
大断面软岩巷道支护技术 - Speedy drivage of the large - bore roadway in rock formation
大断面岩巷快速施工 - Treatment to lost blast in grent fault drifting working face
大断面掘进工作面的丢炮治理 - Design and application of chamber in soft rock of deep mine
深井软岩大断面硐室的设计与应用