A narrow steel sheet with one-folding extends out of a barrel-shaped steel jacket and the side wall of the end surface, and the narrow steel sheet is fixed with a bronze needle.

由圆桶状钢套及其端面侧壁伸出带一折的窄钢片，在窄钢片上固定有一根铜针。

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Standard Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar.

铝青铜中厚板，薄板，带材和轧制棒材标准规格。

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The shield itself, as I've told you is made of a heavy wood, covered by a leather or bronze sheet about three feet across, something in the neighborhood of 16 to 20 pounds worth of shield and gripped as I told you before.

而盾牌,就像我说过的,是由沉重的木材制成,上面包裹有皮革或铜皮,约三英尺宽,大概是十六到二十磅重,就像我刚才所说的,拿起来很费劲

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You need to do that to be able to control the shield that's as big as that and as heavy as that, because it is made fundamentally of a heavy wood, typically covered by leather, sometimes with some bronze, a bronze sheet across the front of it as well.

如果你想自如操控这块盾牌就必须得这样,这种盾牌很大并且很笨重,因为它主要是由沉重的木材制成,表面一般覆有皮革,或包上铜皮,就是表面上有一层铜皮

耶鲁公开课 - 古希腊历史简介课程节选