Mini explained that to have mounted the door on the left-hand side would have required an expensive relocation of the fuel filler system.

宝马公司解释称，如果要将这扇小门装在车身左边，就得让汽车的加油系统搬家，耗资必将十分巨大。

youdao

The main fuel tank must have all the following: a filler tube, a ventilation system, fuel pickup tube and filter, plus a gauge-sending unit.

油箱必须装备以下元件：加油管、油箱通风系统、吸入管、滤清器和油量传感装置。

youdao

Residual cane fibre (Bagasse) is Burned as fuel or used as filler for paper and particleboard.

榨取糖液后所余的蔗渣可用作燃料或用来造纸和压制碎料板。

youdao

Porcelain is also used on the center wheel badges, the fuel filler cap, and the oil filler cap.

FORBES: Bugatti L'Or Blanc Grand Sport at Miami Art Basel

The problem was discovered when testers found special paint used to earth the fuel filler neck was wearing off too quickly.

BBC: BMW recalls new Mini