This article discusses the relevant issues of Large-sized socketed spade coin, such as the situation of discovery, as well as the area and age of casting.

还对这类空首布的发现情况、铸行区域、铸行年代等相关问题进行讨论。

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The key issues for bronze gnomon casting with integrated and clear surface in investment casting in plaster mold involves to prevent large plate from deformation and to ensure full mold filling.

日晷由锡青铜铸造，其铸造技术的关键是防止大平面的变形和保证良好的充型以获得完整、清晰的表面。

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Voters in Sark should avoid having clouded views and stick to important issues when casting their votes, one of the island's politicians has said.

BBC: Sark voters urged to 'avoid clouded views'