游动活塞销的英文

• floating piston pin

• 游动:    move about; go from place to ...
• 活塞销:    wrist pin
• 浮动活塞销:    floating gudgeon pin (floating pistion pin); floating piston pin (floating gudgeon pin)
• 游动活塞式激波风洞:    free-piston shock tunnel
• 活塞销:    pistin pin; piston gudgeon pin; piston pin; pistonpin; wrist pin