(5) adding concrete-pile : machine drills hole, adapting tube pump concrete for the construction technology-concrete composite construction of the foundations;
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machine drills hole
机钻孔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This machine bed can pack to the head of clip-drill and the drills with many bore, making drill a hole more convenient.
本机床可装钻夹头和多孔钻座，使钻孔时更加方便。
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