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- Consisting of broken rock, coal, or ore moved from its place of origin. 碎屑状的由从开采地移来的破碎的岩石、煤块或矿物组成的
- Consisting of broken rock,coal,or ore moved from its place of origin. 碎屑状的由从开采地移来的破碎的岩石、煤块或矿物组成的
- A pointed tool, such as a spike or chisel, used for breaking rock or ore. 钢楔一种如尖铁或凿子等有尖的，用于劈裂岩石或砂石的工具
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- The caving of thick and strong roof stratum,key stratum,causes tremendous rock pressure in mine. 采场上覆岩层中的厚硬岩层,即厚硬关键层,其冒落会造成剧烈的矿山压力显现。
- The behaviour of this waste or broken rock is similar to that of a clean sand or gravel. 这种废石或碎石的行为与洁净的砂石或砾石相类似。
- Round the corner of Croscent Bay, between the pile-up masses of broken rock, a flock of sheep came pattering. 沿着新月海湾的地方，从一堆堆破碎的岩石堆中，一群羊叭嗒叭嗒地跑了过来。
- Flaked and broken rock littered the floor, and the air smelled of dust and crumbling stone. 地板上满是丢得乱七八糟的石头，空气中也弥漫着尘土和碎石的味道。
- Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed. 根据矿压观测结果分析了可拉伸锚杆对软岩巷道支护的适应性及其合理的结构参数。
- On the basis of the observation to rock pressure,the strata behavior regularity of 93305workface is summarized,and the reason is analyzed,rome reasonable advices is put foreward. 在矿压观测的基础上，总结了该工作面的矿压显现规律，并对原因进行分析，最后就工作面的开采提出合理建议。
- According to the principle of measuring the broken rock zone(BRZ) with GPR,the method of the measuring of the broken rock zone was proposed. 根据地质雷达测试隧道围岩松动圈的原理,提出了测试方案,并在共和隧道进行了实测,得出地质偏压隧道围岩松动圈的分布变化规律。
- Static fracture agent, after all, is one way to break rock and concrete in complicated surroundings and unable blasting condition. 在环境复杂且不能施爆的情况下，用静态破裂剂破裂岩石或混凝土不失为一条捷径。
- This method takes the detritus returned from bottom hole as the studying object.The fractal mechanism and forming process of broken rock during drilling were studied. 对石油钻井过程中岩石破碎的分形机理及形成过程进行了研究，提出了一种以井底返出的岩屑为对象测试岩石可钻性的新方法。
- A pointed tool,such as a spike or chisel,used for breaking rock or ore. 钢楔一种如尖铁或凿子等有尖的，用于劈裂岩石或砂石的工具
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area,dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
- A pointed tool, such as a spikeor chisel, used for breaking rock or ore. 钢楔一种如尖铁或凿子等有尖的,用于劈裂岩石或砂石的工具。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area, dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 摘要以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据，论述了超薄基岩工作面顶板的风化变异特征。
- Under composite roof inthe No.2 seamof Tunlan mine,bolt-rope strenthenningsupporttechnique is utilized to control roof ad decrease rock pressure,which has achieved good economic bene-fit. 介绍了屯兰矿在2号煤层复合顶板条件下,采用锚索补强支护技术,有效地控制了巷道顶板离层,减轻了矿山压力显现现象,取得了较好的经济效益。
- It can break rock to drill by using multiple nozzles to form multiple jet flow, and have efflux energy distribution characteristic of local conformity and integer stack. 采用多孔喷嘴形成多股射流组合，使射流能量分布具有局部集中和总体叠加包络的特点，能够有效地实现破岩钻孔。
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
