Computer aided design of the blast-hole arrangement plan in heading tunnel;
掘进巷道炮眼布置计算机辅助设计
According to the ore nature property and actual mining condition in the mine,the problem of high powder ore ratio is solved by modifying the blasting parameter and the blast-hole arrangement,the lump ore ratio and the ore utilization ratio are increased,thus,the mining cost is reduced and economic profit of the mine is increased.
针对我矿矿石的本质特性和开采的实际情况,通过改进采面爆破参数和炮眼布置方式,解决了矿石粉矿率高的问题,有效地提高了矿石块度及煅烧矿石的利用率,降低了采矿成本,增加了企业经济效益。
The blasting hole arrangement of hard ductility rocks in the roadway excavation is discussed and explosive loading coefficient is determined.
介绍了该矿传统掘进凿岩爆破方法,详细阐述了该矿硬韧性岩的巷道掘进炮眼布设及装药系数的确定。
Arrangement of Face Blast Holes and Smooth Blasting Technology in Rock Roadway Driving
工作面炮眼布置与岩巷掘进光面爆破技术
Otherwise they may be supported on a jackleg. The pattern of holes determines the quantity of the material removed and the safety of the remaining rock.
凿岩机也可用气腿支撑。炮眼的布置决定着崩矿数量和留矿堆的安全性。
a device for aiding the eye in aiming, as on a firearm or surveying instrument.
一种帮助眼睛瞄准的装置，例如枪炮或测量仪器。
Improvement of Blating Hole Arrangement and Explosive Charge Volume of Hard Ductility Rocks in the Roadway Excavation at Jinshan Gold Mine
金山金矿硬韧性岩巷道掘进炮眼布设和装药量的改进
Blasthole logging and supervision of blasthole sampling.
记录炮眼数据，并监督炮眼采样工作。
When the popping of firecrackers heralded the opening of business the next morning, the shop of the Lin family again had a new look.
第二天清早，开门鞭炮响过，排门开了，林家铺子布置得又是一新。
"Shells have no eyes.
“枪炮是没有眼睛的。
The lower gun-ports were now below water,
下层炮眼已淹没在水里，
strip-borer drill
露天矿水平炮眼钻机
millisecond round
迟发毫秒爆破炮眼组
perforation compacted zone
炮眼四周挤压密实层
solidly packed tunnel
充填密实的炮眼孔道
permeability of tunnel fill material
炮眼充填材料的渗透率
partially sand packed perforation
地层砂部分充填的炮眼
shotgun marriage [ wedding ]
【采矿】不平衡爆破的炮眼
He says all he has to do is turn around.
爸爸说，他打炮眼呀，打炮眼呀，一扭头就看见我了!
All gun-ports were open and the muzzles peeped wickedly from them.
所有的炮眼都开着，炮口不怀好意地从炮眼里向外窥探。
Before charging work is started, the drill holo is plugged.
开始装药以前，先将炮眼下端眼口堵死。