... 阀杆 VALVE STEM 顶楔 ROOF WEDGE 阀杆螺母 YOKE BUSHING YOKE NUT ...
基于1个网页-相关网页
split wedge roof bolt 叉楔顶板锚杆
sliding wedge roof bolt 滑楔式锚杆
sliding-wedge roof bolt 楔缝锚杆
roof wedge
屋顶楔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The paper introduced the principle and methods of supporting combined the slit wedge bolt in small diameter with steel reinforcement in roadway with compound roof, and obtained economic effects.
介绍了回采巷道复合顶板条件下采用小直径管缝式锚杆加钢筋梯式组合网支护的原理、方法和取得的经济效果。
youdao
应用推荐
模块上移
模块下移
不移动