pin locking pin
销锁定销
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Ted Scott, the American Trucking Association's director of engineering, said an automatic locking device secures the pin into the fifth wheel.
NPR: Runaway Trailer Crashes Rare; NY Accident Killed 7
应用推荐
模块上移
模块下移
不移动