求翻译：并观察油位计中的油位高低，油面淹至油位计最上端刻度线即可（日常使用中若发现油面低于油位计最下端刻度线，表示油箱中油量不足，请加油后方可使用，否则易造成系统不稳定及泵浦损坏）是什么意思？

And observe the level of the oil level in the oil level gauge, oil flooded to the oil level of the top of the scale line can (day-to-day use of the oil below the oil level of the bottom scale line, said the lack of fuel in the tank, refueling before use, otherwise easily lead to system instability a

The oil level gauge and the oil level, the oil-flooded to gauge the top tick marks (if it is found that in daily use oil level is below the oil level of the bottom line, the tank is not enough oil in rear, and can be used to fill, or cause the system to become unstable and pump damage)

And observes in the liquidometer the oil level height, the oil level floods to the liquidometer most upper extreme scale division line then (in daily use if discovery oil level is lower than liquidometer most lower extremity scale division line, indicated in fuel tank oil mass is insufficient, after

And watch the oil level gauge in the high or low oil level, oil flooded to the top oil level gauge tick marks (for daily use if oil are found below the oil level gauge bottom tick, said insufficient amount of oil in the fuel tank, fuel must be used, otherwise easily cause system instability and pump

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