loose pin

常见例句

Also some important part is the bucket cylinder joint pin, the bushing, certainly must carry on the inspection to these place loose and tight.
还有一个重要的部分是铲斗油缸连接销、衬套，一定要对这些地方的松紧进行检查。
The band drawing mechanism is composed of a band clamping slide block and a band drawing feed screw connected with a loose pin at one end of the slide block.
抽带机构由一个夹带滑块和与滑块一端活销接的抽带丝杠组成。
ip.com
Therefore, the lines will lose their original forms as well as meaning. In the end, the artist will pin the loose strips of black velvet to the white mattress.
最后，众人和艺术家用大头针将散乱在白色床垫上的黑色线条一一钉住，如同标本，行为结束。
renjie-in-shanghai.blog.163.com

"It is possible that with an old, not properly maintained fifth wheel that the device can get loose, the sides can wear away, the hole that the pin fits into is no longer snug and rigid, " Scott said.
NPR: Runaway Trailer Crashes Rare; NY Accident Killed 7