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孕镶金刚石钻头
释义
孕镶金刚石钻头
Encyclopedia
理学
孔内钻具
释
impregnated diamond bit
孕镶金刚石钻头
细颗粒金刚石包镶在胎体内的金刚石钻头。因使用人造金刚石,又称为人造孕镶金刚石钻头,广泛用于硬地层钻进中。
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wheel speed transducer
wheelstamen tree
wheel-throwing machine
wheel; wheel graph
Wheel wingnut
wheezing
Wheland complex
whelksand allies
when and only when
When I Was in Xiacun
When Night Is Falling
When Serfs Stood up in Tibet
When Spring Is in Bloom
When We Pick Apples
When We Were Kings
Where do Correct Ideas Come From?
Where is My Home
Where Is the Friend's Home?
Where We Once Walked
W. Herschel
W. Herschel, 1788—1822
whetstone benchmark
whetstone基准程序
Whewell
whey powder
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