孔口 – phrases

Chinese	English
人口孔径靶平面上孔眼人口直径	entry hole size
孔口	beanhole
孔口或井口钻孔或钻井的开口部位。参见 collar	shaft mouth
孔口或井口钻孔或钻井的开口部位，参见 shaft mouth	collar
孔口条件	borehole collar condition
孔口联接器由铝做成、卷在雷管端头的一种连接器，与容易起爆的导爆索相连接	beanhole connector
开口炮孔在分段顶部深炮孔之间钻岀的浅炮孔，用以增强破碎或处理井口区附近的硬岩层。偶尔用于露天爆破设计	stab hole
炮孔口	hole collar
炮孔口	blasthole collar
炮孔口	heel of a shot
炮孔口周边地带	collar region
炮孔口方位	hole collar location
炮孔口标高	shot hole elevation
爆破产生的气体会沿着炮孔将孔口周边的堵塞物和/或碎块抛出	Blast gases can vent up along the blasthole to launch stemming material and/ or fragments from the collar region
现场实验发现、孔口周围的大部分飞石沿着炮孔轴线方向抛掷出去	It is discovered in filed experiments that most of the collar flyrock is thrown in a direction fallowing the drill hole axis
现场实验发现、孔口周围的大部分飞石沿着炮孔轴线方向抛掷出去	It is discovered in filed experiments that most of the collar flyrock is thrown in a direction fallowing the drill holding axis