English | Chinese |
An increase in air temperature causes an increase in the speed of sound, which means that in these conditions airblast emissions can be focused back toward the ground by atmospheric refraction | 大气温度的增高、促使声速增加、这是说在这些条件下、大气折射可将冲击波挡回到地面 |
back azimuth method | 反范围角定位法 |
back blast | 反向爆破 |
back break | 超挖超出预期崩落区的岩石排放。超爆的岩石量取决于所使用的爆破方法、岩石的结构和强度、地下岩洞开口的大小,参见 overbreak |
back break | 后裂最后排炮孔限界之外的岩体破裂 |
back canch | 挑顶参见 backbrushing |
back damage | 顶板危害由于爆破使隧洞顶板的岩石强度降低 |
back elevation drawing | 后视图 |
back explosive | 退库炸药携往爆破现场的炸药,没有使用或用剩后需送回炸药库的行为,称作退库。而返回炸药库的炸药则称为退库炸药 |
back hole | 顶板孔巷道或回采区中顶部的炮孔 |
back holes | 后爆炮孔组 |
back off | 后退 |
back-propagation | 反向传播 |
back-propagation algorithm | 反向传播算法 |
back-radiation | 反向辐射 |
back rebounding | 反弹 |
back resilience | 反弹 |
back-scattering angle | 反向散射角 |
back shooting | 逆向爆破 |
back shooting | 逆向爆射 |
back-slabbing | 回挑 |
back-slabbing hole | 片层爆破挑顶炮孔 |
back system | 备用系统 |
back ward wave | 反射波 |
back ward wave | 回波 |
back wave | 反射波 |
blow-back | 向后吹的气流 |
bring-back | 后退式开采 |
bringing-back | 后退式开采 |
displacement back analysis for rock engineering | 岩体工程位移反分析法用开挖过程中实测的围岩位移推算围岩的力学参数或岩体中的原始应力场的方法。在分析开挖体稳定性问题时,位移和变形通常是作为待求量出现的,因此,测位移、求参数的分析称为反分析 |
distance of back stroke | 后冲距离 |
fire back in selfdefence | 自卫反击 |
height of back upturn | 后翻高度 |
longitudinal back-stoping | 沿走向上向梯段回采 |
Our prime concern is to get the economy back to its feet | 我们最关心的是让经济恢复活力 |
ream back | 反向扩孔 |
spring-back | 药壶爆破在炮孔底部先少量装药爆破成壶状〈扩壶〉,再装药爆破的方法。参见 pocket |
stope back | 采场顶板采空场顶部的岩体或矿床的上盘 |
The major causes of flyrock are inadequate burden, inadequate stemming length, drilling inaccuracy, excessive powder factor,unfavorable geological conditions open joints, weak seams and cavities, inappropriate delay timing and sequence, inaccuracy of delays, back break and loose rock on top of the bench | 飞石产生的主要原因包括抵抗线不足、炮泥长度不够、钻孔不精确、单位炸药消耗量过多、地质条件不利露天节理、矿层不稳固和空穴、延时定时和序列不当、延时不精确、发生反向爆破、以及台阶上部岩石松散等 |
There is no cause to call the work group back | 没有理由召回工作组 |
This is some change the booking office gave back | 这是购票找回的零钱 |