impregnated matrix
... 运筹决策：decision making through operations research 孕镶胎体：impregnated matrix 孕镶式钻头：diaborit ...
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新型金刚石碎岩刀头，由含有金刚石的孕镶层和纯胎体层相间组成。
The new diamond cutter for fracturing rock consists of pregnant layers containing diamond and pure metal matrix layers alternately.
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