drought and flood at flood season
Drought and Flood During Flood Season
Drought and flood in flood season
Drought(flood) in south and flood(drought) in north
flood diversion and flood retarding
flood prevention during flood season
flood prevention in flood season
A shrinkage method combining with medium-length hole and shallow hole
electron-hole liquid drop (=electron-hole droplet)
hole by hole blasting technique
hole by hole detonating
hole by hole initiating
hole by hole initiation
hole-by-hole detonation