discolouration

n.

变色，褪色，污染；

Discolouration in potable water distribution systems: A review
Discolouration of polypropylene-based compounds containing magnesium hydroxide
Asset deterioration and discolouration in water distribution systems
Tooth discolouration and staining: Tooth discolouration and staining: a review of the literature
UV-Fenton discolouration and mineralization of Orange II over hydroxyl-Fe-pillared bentonite
Factorial experimental design of Orange II photocatalytic discolouration
The prevalence of tooth discolouration and the self-satisfaction with tooth colour in a Chinese urban population
SCREENING METHOD FOR SELECTING PLANTS THATSHOW A REDUCED WOUND-INDUCED SURFACE DISCOLOURATION
The impact of peatland drain-blocking on dissolved organic carbon loss and discolouration of water; results from a national survey
Drain blocking: an effective treatment for reducing dissolved organic carbon loss and water discolouration in a drained peatland