| 词条 | 634th Bombardment Squadron |
| 释义 | > 517th Strategic Fighter Squadron 2 : Bombardment squadrons of the United States Army Air Forces|Military units and formations established in 1943 |
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开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。