A brief introduction of isolation system is given, as well as base isolation technique and construction method.
对当前隔震系统做了简单介绍，介绍了基础隔震的技术和施工方法等。
This paper gives a brief introduction to the cardinal principle of horizontal directional drilling technique and its application in the construction of sewer net.
本文介绍了水平定向钻进技术的基本原理及在污水管网建设中的应用。
A brief introduction to the smoothwall blasting technique for Zhengyang Tunnel is given and some experience summed up in this paper.
本文对该隧道的光面爆破施工技术作了简单介绍，总结了几点体会。
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