潜孔锤泡沫钻进技术彻底攻克了潜孔锤在潮湿地层钻进的难关，加深了潜孔锤水下钻进的深度，找到了一条在涌水破碎地层进行潜孔锤钻进的有效途径。
Underhole drilling technology solved the difficulties of drilling in wet layers, deepened the drilling under water, and found an effective method of drilling hi pouring crushing layer.
另外配送橡胶条（橡胶密封圈）一副，橡皮锤一个，扳手一副。
Accessories: A pair of rubber loop, a rubber hammer and a pair of spanner.
图二：桶盖已盖好，桶盖下边缘与桶身第一条加强筋无间隙（要用木锤或橡皮锤敲下去）。
The second picture: the lid was covered well, there isn't a gap between the edge of the lid and the first strong strip of the pail.
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