单词	penetrant aid
释义	penetrant aid 透辅助手段
随便看	torsional oscillation damper torsional-oscillation damper torsional oscillation method torsional oscillation of rolling mills torsional oscillation of shaft train torsional oscillations torsional pendulum torsional pendulum analysis torsional pendulum clock torsional pendulum viscometer torsional performance torsional period torsional phaeo torsional piezoelectric oscillation torsional piezo-oscillation torsional piston ring Torsional postbuckling torsional prestrain torsional prop torsional property torsional pulse torsional recovery test torsional reinforcement torsional relaxation torsional resilience