melioration

n.

改善；

Melioration
Melioration.
Melioration and Behavioral Allocation
Melioration, matching, and maximization.
Melioration: A Theory of Distributed Choice.
Saline Soil melioration and Forestation Techniques
Utility maximization and melioration: Internalities in individual choice.
Research on soil acidification and acidic soil's melioration
ON THE PRESENCE OF END EFFECTS AND THEIR MELIORATION IN WAVELET-BASED ANALYSIS
Induction of lipid peroxidation in hamster organs by the carcinogen cadmium: melioration by melatonin.