同义词
1)hydraulic external line-up clamp,液压外对管器2)external line-up clamp,外对管器3)ratchet outside line-up clamp,棘轮式外对管器4)oil feed line to low-pressure hydraulic accumulator,低液压蓄压器供液导管5)oil feed line from hydraulic accumulators,液压蓄压器供液导管6)hydraulic underreamer,液压管下扩眼器
