. "Water--Softening"@en . _:b7iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b7iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b7iddOtlocdOtgovauthoritiessubjectssh85145509 "Softening of water"@en . _:b12iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b12iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b12iddOtlocdOtgovauthoritiessubjectssh85145509 "Water softening"@en . . . . . . . . . . "Works dealing with the treatment of water used in steam-boilers are entered under the heading [Feed-water purification.]" . . "Softening of water"@en . "Water softening"@en . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 "1986-02-11T00:00:00"^^ . _:b33iddOtlocdOtgovauthoritiessubjectssh85145509 "new"^^ . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 "2014-02-19T07:53:21"^^ . _:b41iddOtlocdOtgovauthoritiessubjectssh85145509 "revised"^^ .