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扩眼器 kuòyǎnqì
dril. broach; hole enlarger; hole opening device; hole sizer; rotary reamer
mech. hole opener
oil reamer
钻柱扩眼器 kuòyǎnqì
dril. string reamer
扩眼器: 85 phrases in 7 subjects
Drilling44
General1
Geophysics1
Mechanics6
Oil / petroleum31
Plastic surgery1
Technology1