The normal impact of a blunt cylindrical projectile on the apex of a thin spherical aluminium cap which caused large permanent displacements was experimentally investigated.

本文报告了平头柱形弹体对铝制球顶壳正撞击时引起的大变形动力响应的实验研究。

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Note: The 6513 uses a non-metallic based toe cap that meet ASTM impact and compression safety standards.

注：6513使用非金属的鞋头，满足ASTM的冲击和挤压的安全标准。

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Discussed the toughening mechanism and the influence of end-cap and molecular weight on resin's Tg and impact strength.

比较了齐聚物的端基结构、分子量大小对LP - 15树脂耐热性、冲击强度的影响，讨论了其增韧机理。

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Overall, valuation factors do have an impact on small-cap value returns.

FORBES: Drawing the Line on Small-cap Stocks

Impact craters surrounding the cap appear to be filled with ice and dust that was either deposited by wind or condensation, or perhaps further remains from an earlier larger ice cap.

BBC: By BBC News Online Science Editor Dr David Whitehouse

The thinking varies on exactly what the expected economic impact would be of a national carbon cap-and-trade system.

FORBES: California's Carbon Caps are Contentious but Coming