For underweight and normal weight individuals, placing airbags within the seat belt also might be protective.

对于体重不足或者普通体重的人群，在安全带中安置安全气囊同样有保障效果。

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The new study revealed that drivers of normal weight are 67 percent more likely to wear a seat belt than are obese drivers—which could account for at least part of the increased death risk.

这项新研究显示，体重正常的司机比肥胖的司机系上安全带的几率高67％，而安全带可以减少死亡风险。

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The valves seat so briefly or poorly that normal heat transfer into the cooling system does not have time to take place, causing burned valves and low power.

气门磨合到位不亮或太短暂，以致来不及向冷却系统进行正常的热转移，造成气门烧坏和输出动力降低。

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