是哪个标准的螺栓其冲出的头型极大于头部直径？

What standard, flush head type bolt offers the largest diameter head?

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她的头部被一颗直径为0.22的子弹击中。

She was hit in the head by a.22-calibre bullet.

《柯林斯英汉双解大词典》

翠鸟流线型的长喙从尖端到头部的直径是逐渐增大的，潜水时会让水流向身后。

Kingfishers wedge themselves into water with a streamlined beak that gradually increases in diameter from tip to head, letting water flow past.

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