英文拼寫:
- semi-circle短語半圓壁龕{建} apse半圓扁鋼flat-round steel; feather edged half-round steel半圓材half-round of timber半圓測(cè)角儀semicircumferentor半圓銼half-round file; pitsaw file半圓分度器half-circle protractor半圓拱round arch; full-center arch半圓鍵woodruff key半圓鍵槽銑刀woodruff key
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