A.the temperature
B.the viscosity
C.the gravity
D.the size
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A.water level
B.water flow
C.temperature
D.pressure
A.flat
B.slat
C.sweet
D.acid
A.starters
B.pressure switches
C.pressure
D.water
A.forced circulating pump
B.compressed air
C.gravity tank
D.bead tank
A.total dissolved solids
B.temperature of distillation of sea water
C.total dissolved sodium
D.total delivery system
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