打捞器是现代专业打捞或寻找沉落金属的新型打捞工具，用于海事打捞、公安、特警、消防，考古勘探，水下工业清理等部门，搜寻打捞水中遇难者、物证、沉船等。
文章介绍了放射性源强磁打捞器的研制和试验。
Here in this paper the research and test works on radioactive source strong magnetic die were introduced.
油井井底碎屑和小件落物的打捞一直沿用强磁打捞器和循环打捞篮。
The fishing magnet and recycle fishing basket have always been used for fishing the ch ips and sm all junks in the oilwell bottom.
本文介绍了强磁打捞器的磁路结构和工作原理及其动态磁路计算方法。
The magnetic structure aud the working principle as well as the design calculation of the dynamic magnetic circuit of the High-Power Fishing-Magnet are;
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