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钻粒钻头 冲击式钻头 冲击钻
shotbit
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冲击式钻头
carr bit chisel bit percussion bit shot bit
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钻头冲击孔底放空
peg leg
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冲击钻头
cable bit chisel bit chopping bit drill hammer impact bit impact drill bit&...
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冲击钻钻头
chopping bit
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冲击钻井;冲击式钻机
percussion drill
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冲击钻头结构
percussion bit design
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钢绳冲击钻头
cabletool bit
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十字冲击钻头
cross-chopping bit
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霰弹冲击钻头
pellet impact bit
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钻头冲程
stroke of bit
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钻粒钻头
shot bit
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锤头冲击机
hammer impact machine
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冲击钻探取心钻头
percussive coring bit
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胎头冲击触诊
cephalic ballottement
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冲击式偏心钻头
offset chopping bit
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冲击式一字形钻头
chisel shaped bit chisel-shaped bit
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击式钻头
chisel bit
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