filler neck meaning in Chinese

加水口颈
加油颈
加油孔
漏斗颈

Filling the tank, waiting for the expansion tank to fill, and then topping off the filler neck is improper fueling procedure .
给油箱加油时，等待膨胀箱加满和把燃油加到加油口处的作法是不正确的。
Pressure caps and filler necks for automobile radiators
汽车用散热器的压盖和接管嘴
Automobile parts - fuel tank caps and filler necks - dimensions
汽车部件.油箱盖和注油口.尺寸
Filler neck seal
加水口密封