timbering的例句（timbering在句子中的用法）

• The Tonglu Mountain Copper Mine used an elaborate system of timbering support the working areas. 铜绿山古矿井采用符合力学原理的木框架支护技术,框外用木棍、木板作护壁,组成完整安全的井筒.
• The crane elevated the timbering upto the upstairs. 起重机将建筑用材吊到楼上.
• Lastly, the paper simulates bolt timbering of the laneway along the gob. 最后, 分析模拟了沿空巷道的锚杆支护情况.