Japanese No31-class patrol boat.jpg
1=米軍}}
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Japanese No31 class patrol boat, IJN ''No.31''-class patrol boat
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ja
日本海軍　第三十一号型哨戒艇、第三十一号型哨戒艇
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Japanese No31 class patrol boat, Landing ships of the Imperial Japanese Navy, Momi class destroyer, Patrol boats of the Imperial Japanese Navy
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Type 31 Patrol Boat, Type 31 Patrol Boat, Type 31 Patrol Boat
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ja
大日本帝国海軍第31号型巡視艇
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大日本帝国No31型巡視艇、大日本帝国海軍の揚陸艦、級駆逐艦、大日本帝国海軍の哨戒艇
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patrol patrol boat patroller taxonomic taxonomically lesson cohort class course (education)