drilling and blasting operation

28041 blasting caving face,three kinds of crossing the fault projects are established.

针对28041炮放工作面的断层情况,研究、制定了三种过断层方案,分别论述了其优缺点。

Initiation is carried out by using millisecond detonators, the opening taking the form of holes in the remaining pillar.

使用毫秒雷管进行起爆，开拓的方式则是在余留的矿柱中打眼放炮实现的。

He says all he has to do is turn around.

爸爸说，他打炮眼呀，打炮眼呀，一扭头就看见我了!

The villagers beat drums and lit firecrackers

村民们敲锣打鼓放鞭炮，

Her reply was a string of explosive hiccups and a stream of tears.

林大娘的回答是连珠炮似的打嗝和眼泪鼻涕。

The detonator must be correctly fed into the drill bole during charging work.

在装药工作中，雷管必须正确地放进炮眼。

In the Second District, letting off fire crackers and ceremonial guns is forbidden, with a fine of 1.20 yuan for the former and 2.40 yuan for the latter.

二都禁放鞭炮和三眼铳，放鞭炮的罚洋一元二角，放铳的罚洋二元四角。

approved shot firing apparatus

安全放炮器耐爆放炮器

A cannon-ball took off his legs, so he laid down his arms.

一个炮弹打断他的腿，所以他放下他的武器。

In order to loosen the coal, the miners made holes in the dividing wall and filled them with explosives.

为了使煤层松动，矿工们在隔墙上打了炮眼，装进了炸药。

Blasthole logging and supervision of blasthole sampling.

记录炮眼数据，并监督炮眼采样工作。

Zambrotta was next seen in attack, air-kicking at a chance at the far-post as the Chelsea goal looked briefly exposed.

赞不罗塔之后助攻到前场，可惜一记打门放了高射炮。

So people put up red couplets on their gates, set off firecrackers, and kept on beating gongs and drums.

于是人们在家门口贴红对联，放鞭炮，不停地敲锣打鼓。

"Shells have no eyes.

“枪炮是没有眼睛的。

The lower gun-ports were now below water,

下层炮眼已淹没在水里，

strip-borer drill

露天矿水平炮眼钻机

millisecond round

迟发毫秒爆破炮眼组

perforation compacted zone

炮眼四周挤压密实层

solidly packed tunnel

充填密实的炮眼孔道