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单词
drill jig
释义
drill jig
[`dril ´jig]
MECHANICAL ENGINEERING
A device fastened to the work in repetition drilling to position and guide the drill.
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P-branch
PBX
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p-channel metal-oxide semiconductor
p chart
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PCNB
PCP
PCR
PCSB
P Cygni star
PD
Pd
PDA
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PDL
pdl-ft
PDM
PDMS
PDR
PDU
pea
peach
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