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1. The tank filling system is essential for maintaining the tank's operational efficiency.
坦克补给系统对于保持坦克的运行效率至关重要。
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2. The tank filling system was designed to ensure that the tank could be filled with fuel efficiently.
坦克补给系统被设计成确保能够高效地为坦克加油。
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3.The tank filling system has been upgraded to improve its capacity and reduce maintenance costs.
坦克补给系统已经升级，以提高其容量并减少维护成本。