Did you mean: tengxian tangmian tangxin tanxian tingxian tongxian tangshan tongxin ?
|
膛线 |
táng xiàn |
rifling (helical grooves inside the barrel of a gun) |
|
唐县 |
Táng Xiàn |
Tang County or Tangxian, a county in Baoding City 保定市[Bao3 ding4 Shi4], Hebei |
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