In other cases, it can either be subtracted from the reading by using the REL (zero) feature or simply canceled out by using built-in zero suppression if the instrument has this feature.

• 在另一些情况下，则可以使用REL（零点）功能将其从读数中减去，或者简单地使用内置的零点抑制功能（如果仪器具有此功能的话）将其消除。