The polished rod fishing tool is a new type of fishing tool and is mainly used to fish long slim, not heavy rod type fishes.

• 光杆落物打捞器是一种新型打捞工具,主要用于打捞重量较轻的细长光杆式井下落物(如测斜仪器、测井仪器等),详细介绍了该工具的结构、工作原理及使用注意事项。