求翻译：　　5.调：即柴油机或汽油机的气门间隙、配气相位、供油提前角、喷油压力以及点火正时等都应及时检查并调整，以保证发动机经常处于良好的技术状态，方能节省燃油，延长使用寿命。是什么意思？

5 notes: the diesel or gasoline engine valve clearance, valve timing, injection timing, injection pressure and ignition timing, etc. should be checked and adjusted to ensure the engine always in good technical condition in order to save fuel and prolong life.

5.diesel or gasoline engine: That is the valve clearance for oil and gas distribution phase, early point, fuel injectors and ignition is when pressure should be adjusted to ensure timely inspection and engines often in good technical condition, we can save fuel and extend its useful life.

　　5. accents: Namely the diesel engine or the gasoline engine valve clearance, matches was mad the phase, the feed angle of advance, the blow pressure as well as the ignition timing and so on all should inspect promptly and adjust, guaranteed the engine is at the good technical condition frequently,

　　5. adjust: the diesel engine or gasoline engine valve clearance, valve timing, fuel supply advance angle of ignition timing, fuel injection pressure and so should be checked and adjusted in a timely manner to ensure that the engine always is in good technical condition, in order to save fuel and p

　　5. adjust: the diesel engine or gasoline engine valve clearance, valve timing, fuel supply advance angle of ignition timing, fuel injection pressure and so should be checked and adjusted in a timely manner to ensure that the engine always is in good technical condition, in order to save fuel and p