前向 – phrases

Chinese	English
上部超前掘进-下向回采一种掘进方法,其上部或上平巷先掘至全长,然后再扩大其余部分。这种爆破方法用于掘进平硐、隧道和平巷	top heading-underhand stoping
前向推力	forward thrust force
前向运动	forward motion
即便在爆破完全封闭且岩石没有破碎的情况下、穿行在岩层的压力脉冲会继续向前进人大气	Pressure pulses traveling through the rock continue onward into the atmosphere even when the blast is completely confined and the rock is not broken
向前地	on
向前推至下一步	advance
当前排炮孔抵抗线不足或钻孔偏离了设计的方向时、也会发生自由面破裂现象	F-bursting can also occur when the front row has insufficient burden or drilling deviations from design
抛掷是破碎岩石在爆炸区内形成爆堆的一种根据计划安排的前向运动	T-is a planned forward movement of rock fragments that form the muckpile within the blast zone