此液压垫的最大公称力是4，500kN。

The maximum displacement force in the cushion is 4, 500 kN.

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新闻报告说，她将要参加一个慈善活动，叫“勇敢的守护天使”，是向因公称职的警员致敬的活动。

A press release announces that she is set to attend a charity event called "Eagles and Angels, " which honors police officers killed in the line of duty.

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指出螺栓联接的扭紧力矩值不仅与螺栓的公称直径及性能等级有关，还与能否保证联接可靠工作有关。

The value of tightening torque is relative not only to the nominal diameter and quality class of the bolt, but also to the security of the threaded fastener.

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