半圆头

• oval head
• button head
• round head
• cup head
• rical head

参考释义

半圆头 [bàn yuán tóu]

• -
• 短语
  半圆头扳手 spanner
  半圆头锤 half-round hammer
  半圆头方颈螺栓 step bolt
  半圆头螺钉 button-headed screw; cup head screw; half-round screw
  半圆头螺栓 cup-head bolt
  半圆头铆钉 cup head rivet
  半圆头木螺钉 cup head wood screw