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现行的炮孔排水设备不能满足某些用户的生产要求。本文介绍了几种适用范围较广、简单可靠、经济实用的炮孔排水装置。
The current hole blasting equipment can not meet the production requirements of some users. This article describes several wide range of application, simple and reliable, economical and practical blasthole drainage device.