求翻译：　　夏季开车，阳光曝晒不但会灼伤驾驶员的皮肤，同时紫外线还可能灼伤汽车内饰，使一些皮件老化。汽车内部温度升高，也使空调使频率提高，增加了油耗，所以贴膜是十分必要的，但目前市场上车膜种类较多，质量也参差不齐。所以选择车膜时要掌握一定的鉴别方法。是什么意思？

　　Driving in summer, sunlight exposure not only burns the pilot's skin, while ultraviolet may also burn automotive interior trim, leather aging. Vehicle interior temperature, and also makes air conditioning makes frequency increase, an increase of fuel consumption, so the film is very necessary, but currently on the market film getting on the bus type more, quality is mixed. So when choosing a car film to master certain identification method.