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本文介绍了弱包镶强耐磨性胎体钻头的基本原理及使用效果。
This paper describes the basic principle and use of the bit with weak holding and high wear resistant matrix.
youdao
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本文介绍了弱包镶强耐磨性胎体钻头的基本原理及使用效果。
This paper describes the basic principle and use of the bit with weak holding and high wear resistant matrix.
youdao