运转时进行的纵向打孔器的英文

running perforator

• 运转:    revolve; turn roun ...
• 时:    shí]
• 进行:    be in progress; be ...
• 的:    4次方是 The fourth po ...
• 纵向:    direction; machine ...
• 打孔:    punch a hole
• 器:    implement; utensil ...