马自达在美国，加拿大和墨西哥召回超过30万辆问题汽车，提示这一动力转向的问题会引起撞击事故。
Mazda is recalling more than 300, 000 cars in the US, Canada and Mexico, warning that problems with their power steering could lead to crashes.
马自达在美国，加拿大和墨西哥召回超过30万辆问题汽车，提示这一动力转向的问题会引起撞击事故。
Mazda is recalling more than 300,000 cars in the US, Canada and Mexico, warning that problems with their power steering could lead to crashes.
撞击过程实际上是一个防撞梁在船体撞击作用下的弹塑性动力响应问题。
The process of impact is really an elastoplastic dynamic response by the action of ship impacting anticollision beam.
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