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Calculator - dosage of CO2 in the aquarium

Ile co2 w akwarium? Dawkowanie co2 w akwarium.
The online calculator by entering the pH and kH values ​​to calculate the concentration of CO2 in the aquarium.                

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Calculator to the data calculates the estimated time of charging.            
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The projected increase in child

Calculator based on the sex of the baby and given parental height calculated the projected increase in the child as an adult.            
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Calculator degrees Plato / Brix

The calculator calculates the sugar content of a drink in degrees Plato and Brix and the volume of alcohol in the solution based on the relative density of the solution.  
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Calculator for calculating the volume of a cylinder

Jak obliczyć objętość walca?
The calculator calculates the volume of a cylinder with using of height and area.
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Calculator cerebral blood flow (Cerebral Blood Flow)

Associated to the data calculated how much blood supply to the brain in one minute.