有效的方法是采用高位燃油箱供油方式，但如何保持其油面恒定是实际操作中的一个难题。
In order to meet this requirement, to adopt the fuel-supplying mode of a high-positioned fuel tank is an effective measure, but to keep the constant fuel level is difficult in operation.
有效的方法是采用高位燃油箱供油方式，但如何保持其油面恒定是实际操作中的一个难题。
In order to meet this requirement, to adopt the fuel-supplying mode of a high-positioned fuel tank is an effective measure, but to keep the constant fuel level is difficult in operation.
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