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硬质合金钻头
释义
硬质合金钻头
Encyclopedia
理学
孔内钻具
释
ungsten-carbide bit
硬质合金钻头
钻头体上镶焊有钨钴硬质合金的切削工具。
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leap function
leap month
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leap second adjustment
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learnability
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Learned Men(Remnant of Seven Sages of the Bamboo Grove)
Learned Publishing
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learner's dictionary
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Learn from Daqing in industry
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Learn from Lei Feng
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Learning About Ancient Seals
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