求翻译：燃油输送泵将燃油从油箱吸出，沿油管经管接头，金属滤芯和油道送入环形油腔。一部分燃油又从这里经油道与第二个滤芯不断地流回燃油箱。因此，燃油在环形油腔内循环，即能使泵-喷油器冷却又能防止在其中积存气泡。是什么意思？

The fuel pump will suck out the fuel from the tank, administered along the tubing joints, metal filter, and oil into the annular oil chamber. Part of the fuel and from here continue to flow back into the fuel tank through the oil passages and the second filter. Therefore, the fuel in the annular oil