单词	Piercing procedure
释义	Piercing procedure 造孔操作
随便看	vacuum tube amplifier vacuum-tube amplifier vacuum tube amplifying method vacuum tube arrester vacuum-tube arrester vacuum tube associated with resonator vacuum tube base vacuum tube blood collection vacuum tube bridge vacuum-tube bridge vacuum tube capacity vacuum tube casting vacuum tube characteristic vacuum-tube characteristic vacuum tube characteristics vacuum tube checker vacuum tube circuit vacuum-tube circuit vacuum tube clipping circuit vacuum-tube clipping circuit vacuum tube coating vacuum-tube constant vacuum tube converter vacuum-tube converter vacuum tube curve tracer