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- expansion type roof bolt 膨胀式锚杆
- slotter type roof bolt 开缝顶板锚杆
- When constructing on super section lane, combining roof bolt, anchor cable, anchor cable series, is scientific and reasonable, can achieve good effect. 超大断面巷道施工,采用锚杆、锚索、锚索组联合支护,科学合理,实现了安全高效的良好效果。
- This paper described the practice of using combined beam theory and suspensory theory,such as roof bolt,net,steel rope,and shotcrete being used together to strenthen roof control. 应用组合梁和悬吊理论,对松软岩层采用支护新技术,即锚、网、带、索、喷等联合支护方式,加强对松软岩层巷道顶板的控制,降低了材料支护费用,提高了软岩巷道支护的可靠性,同时也提高了松软岩巷的掘进速度。
- Linghu Gold Mine has successfully used "retreating room-and-pillar method along the dip with roof bolt" in its trouble orebodies and achieved notable social and economic benefits. 灵湖金矿采用“沿倾斜后退式回采锚杆护顶房柱法”方案,解决了难采矿体的开采问题,取得了显著的经济效益和社会效益。
- liquid expansion type thermostat 液体膨胀式恒温器
- Inclined combined beam model with roof bolted are presented and solved,the expressions of support parameters of bolt are derived. 建立大倾角煤层回采巷道锚杆支护的倾斜组合梁模型，并进行解算，给出锚杆支护参数的表达式。
- Compound Coal into Roof bolt Shoring Technique 复合煤层掘进锚杆支护技术
- Application of roof bolt test rig 锚杆钻机实验台的应用
- Expansible type temperature controller for electric heating appliance ,such as water heater ,washer, electric oven, fryer, boileretc. 主要用于热水器、洗衣机、电烤箱、油炸锅、开水器等电热器具用体涨式温控器。
- Test and research on fiberglass roof bolt 玻璃钢锚杆的试验研究
- Power Steering Pressure Hose - High Volumetric Expansion Type 动力转向压力软管。高容积膨胀型
- roof bolt and co - shooting support system 锚喷支护
- Power Steering Pressure Hose - Low Volumetric Expansion Type 动力转向压力软管。低容积膨胀型
- The numerical model of roof bolting and rock mass collaboration was based on Hoek Brown's strength criterion. 基于虎克-布朗强度准则给出了岩体及顶板锚固的数值模型。
- high - strenthened resin roof bolt 高强树脂锚杆
- An Experimental Study of Model for A New Type Roof Construction 一种新型的屋架结构模型试验研究
- Metals undergo expansion when heated. 金属加热时会膨胀。
- Bumper is anchorites by iron expansion bolt. 车辆撞击缓冲垫,用铁膨胀螺栓固定。
- The suburbs are an expansion of cities. 郊区是城市的延伸。
