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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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reentry
re-entry altitude
re-entry angle
re-entry communication
reentry control
re-entry corridor
re-entry data capsule
re-entry distance
re-entry flight characteristics of warhead
reentry guidance
reentry maneuver guidance
reentry module
re-entry observation
re-entry shield
re-entry thermal protection
re-entry thermal protective structure
reentry trajectory
reentry velocity
reequipping of sinking facilities
Rees
Rees congruence
Rees matrix semigroup
Rees module
Rees quotient
Rees ring
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更新时间:2026/7/2 20:29:53