求翻译：Vehicles in use, leakage failure often occurs, it will directly affect the technical performance of the car, resulting in waste lubricating oil, fuel, consumes power, affecting the vehicle appearance clean and tidy, cause environmental pollution.? Due to oil spills, the inside of the machine lubricants to reduce, resulting in insufficient part poor lubrication, cooling, parts of early damage caused, or even leave a potential accident. First, the main cause of oil leakage of common vehicle 1. Products (accessories) poor quality, material or process; problems in structure design. 2. Improper Assembly high speed, with the surface is not clean, liner code for breakage, displacement or not according to the rules of installation. 3. Fastening nut screw force is uneven, broken sliding buckle or songkuang loss results in failure. 4. Sealing material after long-term use and wear limit, metamorphism, deformation and failure of ageing. 5. Lubricants add too much oil, oil level is too high or plus wrong.? 6. Parts (covers class, thin-walled parts) junction surface deflection, shell damage so lubricating oil seeps.? 7. Ventilation, hilly trap instrument, because the air pressure inside and outside the tank shell of the role of differential tends to seal caused by weak oil spills.?是什么意思？

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