new-type impregnated diamond bit
new-type impregnated diamond bit
新型浸渍金刚石钻头
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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A new type of impregnated diamond bit with two sorts of diamond abrasives has been developed, which can improve both penetration rate and service life simultaneously.
研制出一种两级磨料新型孕镶金刚石钻头，该种钻头解决了时效与寿命不能同步提高这一长期困扰钻头研制者的难题。
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