求翻译：在一定道路上，教练车用不同的档位行驶，油耗量是不相同的。显然，在同一道路和车速条件下，虽然发动机发出的功率相同，但档位越低，后备功率愈大，发动机负荷率愈低，油耗愈大。是什么意思？

In a certain way, the coach car with different gear driving, fuel consumption is not the same. Clearly, in the same road and speed conditions, although the engine's power to issue the same, but the lower stalls, the greater reserve power, the lower the rate of engine load, fuel consumption is greate

In a certain way, coach, car traveling in different stalls, oil consumption is not the same. It is clear that, in the same road and speed conditions, while engine power, but the lower stalls, back-up power, the larger the engine load, the lower fuel consumption.

On certain path, the driver training car goes with the different files position, the oil consumption quantity is not same.Obviously, in identical path and under vehicle speed condition, although the engine sends out the power is same, but the files position is lower, the standby power is bigger, the

On a certain road, coach car with a variety of stalls, amount of fuel consumption is not the same. It is clear that in the same way and speed conditions, while the engine power of the same, but stalls down, reserve power, the greater lower its rate of engine load, fuel consumption of the greater.

正在翻译，请等待...