1) loose pore
松动孔
1.
By analyzing the failure mechanism of loose blasting and control hole,we propose the prevention and cure coal and gas blas-ting technological parameter of loose pore and control pore,which is on the driving workplace in No.
论述了松动爆破和控制孔的破坏机理,提出了平煤十矿掘进工作面防治煤与瓦斯松动孔和控制孔的爆破工艺参数。
3) shallow hole loose explosion
浅孔松动爆破
4) brake release port
制动器松放孔
5) deep-hole bench loosening control blasting
深孔台阶松动控制爆破
1.
Under the condition of complicated environment interference, using micro-difference fixed interval blasting net, deep-hole bench loosening control blasting is carried out in the mountain at the section from K18+600 to K18+645 of Beijing to Chengde Expressway.
在环境干扰大的情况下,运用孔内外等间隔微差起爆控制网络,对(北)京承(德)公路冀京界至承德市段5标段K18+600～K18+645山体实施深孔台阶松动控制爆破。
6) Preceding loosening blasting in deep hole
超前深孔松动爆破
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条