Wind-crack 风裂
As seen on the show Mythbusters, a penny won't pick up enough speed to crack a human skull. Wind resistance makes this impossible event even more unlikely.
正如《流言终结者》中曾经播出的，一分硬币永远不可能获得足够的速度穿过人的头骨，风的阻力会使速度更慢。
The sun's magnetic field near Earth has tipped south, opening a crack in Earth's magnetic defenses against the solar wind.
太阳在地球附近的电磁场已经偏向南方，在地球抵御太阳风的磁场防卫层上打开了一道口子。
In addition, the crack propagation and fatigue damage of CSP under wind load in the case of the material which have initial crack have been analyzed using fracture mechanics method.
此外，还运用断裂力学方法分析了材料有初始裂纹的管道在风荷载作用下的裂纹扩展及疲劳损伤。
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