当遇到需要长时间停靠户外的情况时，车辆应尽量避免直接在阳光底下暴晒，以防止车门、天窗边上的密封圈因受热而发生变形和龟裂。
When need long time stop outdoor conditions, the vehicle should avoid direct exposure in the sun, to prevent the door seals, skylight on the edge of the deformation and cracking due to heat.
另外，车辆长时间不洗，一些密封胶条得不到及时护理，也会老化失效，使密封性能。
In addition, the vehicle does not wash for a long time, some of the sealant can not be timely care, aging failure, so that the sealing performance.
激光器对车辆的轻质铝外壳进行密封，这是其制造商通用汽车公司(General Motors)刚刚在美国推出的新技术。
Lasers seal the car's lightweight aluminum exterior using techniques that the carmaker, General Motors, has only just introduced in the United States.
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