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冲击钻头
bridg.constr. percussion drill-bit; percussion borer; chopping bit
dril. churn drill bit; impact action bit
eng.geol. chisel; drill hammer; jumper bit; percussive bit
mech. hammer bit; percussion bit
oil churn-drill bit; impact drill bit
shipb. chisel bit
tech. cable bit; percussive chisel; straight bit; trepan chisel
冲击钻头
tech. chopping bit; percussion bit
全面冲击钻头
eng.geol. button bit
冲击钻头: 32 phrases in 6 subjects
Architecture1
Construction1
Earth sciences1
Engineering geology6
Oil / petroleum3
Technology20