"Manufacturing companies with complex and lengthy international supply chains, such as the automotive industry, could also face significant challenges. These developments could also have a significant impact on productivity growth. " Leakage may occur at the interface of the gasoline pipe, which leads to the use of the air conditioning system into the vehicle. If the owner found the car fumes, deal with gasoline pipeline - open interface to check engine hatch, it is easy to discern does the interface of gas leakage, for a period of time after the leakage surface will appear a layer of oil sludge. If the leakage of the gasoline pipe is found, the interface should be tightened or repaired. Online Academic Journals: On the off chance that you are a scholar with a college, you should have entry through your foundation's library to most online adaptations of scholarly diaries, and will be capable to download papers and articles in PDF structure, or other configuration, just like as eBooks. Doing a Google seek on the point of your article and prefixing it with "Exploration:" may help you discover these diaries, or perhaps your college's library homepage may have a "revelation" segment that can point you within the right course.