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- cracked coal body 破碎煤体
- We know that hydraulic extrusion cracked coal bed of working-face, advanced the maximum main stress zone,improved the width of flaw zone,lowing the fatalness of coal outbrusting. 通过对3246风巷高压注水试验,水力挤出使工作面前方的煤体压裂,集中应力区向前推移,卸压带宽度增加,降低了煤的突出危险性,起到了消突作用。
- STRUCTURAL FEATURES OF COAL BODY IN SEAM NO.8 AND REGIONAL PROGNOSIS OF COAL AND GAS OUTBURST IN PANJI MINE NO. 潘一矿8煤层煤体结构特征及煤与瓦斯突出区域性预测。
- According to the model and the sdution, the stresses of coal body are simulated to be influenced by temperature. 在此基础上,对不同温度下煤岩体应力和瓦斯压力的分布规律进行了数值模拟。
- I am come from Hunan. You borrows this kind of abund 's coal body to know more you. 近期心愿:找到我自己喜欢的造纸行业.;工作啦!还有找到谈得来的朋友或异性朋友啦
- By means of some parameters that reflect breaking strength of coal body structure, changing features of coal body structure at No. 采用反映煤体结构破坏程度的若干宏观与测试参数,研究了石嘴山一矿井田主采三层煤的煤体结构变化特征。
- The instability phenomena of coal body are studied by computing bulging mode of coal body in Zhaogezhuang coal mine in Kailuan. 摘要用计算煤体的屈曲模态研究了开滦赵各庄矿的煤体失稳现象。
- The paper holds that the source of gas outburst danger consists in the gas-rich area possessing thermal coal, high-potential gas as well as fragmentized coal body. 认为突出危险源是存在于采矿活动中的具备发动煤与瓦斯突出的高势能瓦斯与破碎煤体混合的瓦斯富积区。
- According to the underground pressure theory, which takes stratum movement as key matter, the nonelastic area occurs in coal body under the action of underground pressure. 根据“以岩层运动为中心”的矿山压力理论,煤体在矿山压力作用下将出现非弹性区。
- The paper also in the light of the applications of pendulum crushers in cracking coal in a concentration plant,proposes the idea of a light crusher. 本文还根据某选矿厂采用颚式破碎机破碎煤炭的使用情况,提出生产中轻型颚式破碎机的构想。
- Based on the cutting experiments used by cutter tooth and point-attack pick on the press and cutting simulation test table, the deformation and failure process of coal body are studied by the method of white light digital speckle correlation. 摘要采用白光数字散斑相关测定方法,在压力机上,在截割模拟实验台上分别对煤试件进行刀齿、镐齿的截割实验,研究被截割煤体的变形破坏过程。
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- By means of some parameters that reflect breaking strength of coal body structure, changing features of coal body structure at No.3 coal bed of No.1 mine in Shizuishan Mine Area are studied. 采用反映煤体结构破坏程度的若干宏观与测试参数,研究了石嘴山一矿井田主采三层煤的煤体结构变化特征。
- The frail wooden bridge cracked. 这座不牢固的木桥断裂了。
- The ice cracked as I stepped onto it. 我一踩冰就裂了。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- They finally cracked the defence and scored a goal. 他们终於突破了防守,射进一球。
- I cracked two eggs into the frying pan. 我往平底锅里打了两个鸡蛋。
- He cracked his whip and the horses began to trot. 他噼噼啪啪地挥鞭策马狂跑。
- The suspect cracked under questioning. 嫌疑分子在审问之下招供了。