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- millisecond blast i 微差爆破
- In millisecond blast engineering,the key to achieving initiative control of vibration damages by means of wave interference is to ascertain reasonable delay time interval. 在微差爆破工程中,用干扰降震法实现爆破震动灾害主动控制的关键在于确定合理的微差延期时间。
- Based on the character of short-time non-stationary random signal, the feature of energy distribution of multi-interval-time in millisecond blast signals was investigated by means of the wavelet packet method. 摘要根据爆破振动信号具有短时非平稳的特点,利用小波包分析技术对满足分析要求的多段微差爆破振动信号的能量分布特征进行研究。
- By use of deep-hole millisecond blasting technique, four larg e-volume bridge piers under complicated circumstances were successfully demolished. 用深孔微差爆破技术成功地拆除了复杂环境下的四个大体积桥墩。
- Keywords millisecond blast;coal recovery rate;roof management; 毫秒爆破;煤炭回收率;顶板管理;
- The millisecond blasting method with long-delay out-of-hole and short-delay in-hole detonators and one-through initiation was ado pted in blasting design. 设计采用孔内高段延期雷管、孔外低段延期雷管一次引爆的微差爆破。
- Successful application of the deep-hole millisecond blasting with double-bench smooth blasting is a development to deep-hole blasting technologies for open pits. 双台阶光爆的深孔微差爆破的成功应用,是露天深孔爆破技术的一项发展。
- The natural conditions and order of the millisecond blasting are introduced.The arrangement ways of the millisecond pipes are expounded.It has made good result in practice. 介绍了炮采工作面毫秒爆破的自然条件和起爆顺序,详细阐述了毫秒管的布置方式,在实践中收到了良好的效果。
- How can I persuade you of my sincerity? 我如何能够让你相信我的诚意?
- I am a hundred percent in agreement with you. 我百分之百同意你的看法。
- I am well aware that this is a tough job. 我深知这是一件棘手的工作。
- I beg your pardon. I suppose I should have knocked. 请原谅,我想我本该敲门的。
- I believe he has started reading up anthropology. 我相信他已开始攻读人类学。
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- I gave him money as an inducement to leave. 我给他钱,诱使他离去。
- I got a new coat in that store last week. 上礼拜我在那家店买了一件新外套。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- I have a feeling that we are being followed. 我有种感觉我们正被人跟踪。
- According to lab model experiment and theory analysis,the rational delay intervalof millisecond blasting used in rock drift excavating was acquired and a new type of long millise-cond delay detonator was researched and manufactured. 根据实验室模型试验和理论分析得出岩石巷道掘进微差爆破合理延迟间隔时间,据此研制出新型长延迟毫秒雷管。
- I have a huge pile of letters to deal with. 我有一大堆信件要处理。