水下钻孔爆破是工程爆破的重要组成部分。
The underwater drilling blasting engineering is a importance part of the engineering blasting.
文章介绍了一种简易的水下钻孔爆破施工平台及实用的移船定位方法，改进了传统的药包加工及装填工艺。
A simple working platform for underwater drilling blast and the practical method to removing and orientating the ship are introduced in the paper.
本文介绍了在沉井上部搭台架设钻机，进行水下钻孔，孔内分层定向爆破技术。
This paper introduces a technique of erecting framework and rig at the upper part of the caisson, making underwater boring and oriented explosion by layers within the bore hole.
本文介绍了在沉井上部搭台架设钻机，进行水下钻孔，孔内分层定向爆破技术。
This paper introduces a technique of erecting framework and rig at the upper part of the caisson, making underwater boring and oriented explosion by layers within the bore hole.
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