The resilient rubber of the sleeve also ensures a tight shut-off for a clean filling station.
套管的弹性橡胶也确保灌注系统的关闭紧密性。
At present, cut-and-fill method is adopted in a growing number of mines. However, it is quite common that stopes roofs are unable to be tight by pipeline transport in filling.
目前，使用充填采矿法的矿山日益增多，管道输送充填不接顶现象普遍存在。
The machine is equipped with prevent drip with wire filling cocks, ensure filling after the completion of a drip-tight, no drawing.
膏体活塞式灌装机 配备了防止滴漏与拉丝的灌装闷头，确保灌装完毕后无滴漏，无拉丝。
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