1)master link,主连接杆2)master link bar,主连接杆3)two-piece master link,组合式主连接杆，组合式履带闭合链节4)master link,master rod; main connecting rod,,主连杆5)mother rod,主连杆6)main connection,主连接7)main connecting rod,主连杆8)main(master )cylinder,主连杆气缸9)master link pin end,主连杆销端10)autonomous and continuous Petri net,自主连续Petri网
