residual

In a sentence

• L'aigua residual ha estat tractada abans de ser abatuda al riu.

  The wastewater has been treated before being released into the river.

  In this sentence, 'residual' is used as an adjective describing 'aigua' (water), indicating that it is leftover or waste water.

• El soroll residual no afectarà la qualitat de l'enregistrament.

  The residual noise will not affect the quality of the recording.

  Here, 'residual' describes 'soroll' (noise), referring to background or remaining noise that persists.

• Hem d'eliminar el risc residual quan planifiquem futures mesures.

  We must eliminate the residual risk when planning future measures.

  In this case, 'residual' characterizes 'risc' (risk), implying the part of risk that remains after mitigation efforts.