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- Therefore,increasing the rock drivage speed has the most inportant meaning to accelerate the shaft building. 因此,提高岩巷掘进速度,对加速煤矿建设有非常重要的意义。
- But in the mass,rock drivage in our country is slow and inefficient,which affects the properly conjoining of coal production. 但我国岩巷掘进整体上表现为速度慢、工效低,影响了煤炭生产的合理接续。
- Introduces when fully-mechanized mining face crossing faultage in Tunlan coal mine,adopts a kind of new technique of preacting to dig rock drivage along the faultage and abtains the better results. 介绍了屯兰矿在综采工作面过断层时,采用一种沿断层提前掘岩巷的新工艺,取得了良好的效果。
- Keywords rock drivage;excavation efficiency;holing; 岩巷掘进;掘进工效;打眼;
- Keywords smooth blasting;rock drivage;labor efficiency; 光面爆破;岩巷掘进;劳动效率;
- Keywords driving of rock drivage;comprehensive carrying capacity of waste rock;average footage per month; 岩巷掘进;装岩运输综合排矸能力;月进度;
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The water had worn a channel in the rock. 水把岩石冲出了一条沟。
- He dash the glass bowl to bit on a rock. 他对著石块把玻璃碗砸得粉碎。
- The mountain rise up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- The mountain rose up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- He chiseled that rock into the figure of a woman. 他把那块石头凿成一个女人像。
- The boat was sundered by the rock. 船被岩石撞碎了。
- Deep grooves channelled the soft rock. 在软岩石上形成许多深槽。
- The mason was chipping away at the rock with a hammer. 石匠用锤子一点一点地把那块石头击碎。
- She is crazy about rock and roll. 她喜欢摇滚乐。
- The road was blocked by a huge rock. 道路被一块大石头堵住了。
