The 2011 BMW 5 Series sedan earned the top rating in each of the institute's crash tests, making the car officially one of the 2011 safest cars.

2011年宝马五系轿车在保险机构的各个撞车实验中名列前茅，该轿车成为2011年官方公布的最安全汽车。

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A paper storage rating is based on testing each paper for its resistance to yellowing over time using accelerated tests incorporating high temperature and high humidity.

纸张的保存率是基于测试每种纸张通过加速高温和高湿环境对变黄的阻碍率。

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Temperature relay tests temperature of motor, if it exceeds rating temperature to send a signal, contactor cut off main circuit to complete protection of motor.

温度继电器检测电动机温度，超过额定温度发出信号，接触器切断主电路，完成电机保护。

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To choose the safest model, Rader recommends starting by looking for vehicles with the top rating in all crash tests, plus those that incorporate ESC.

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