A system for vaporizing and sublimating a slurry comprising a fluid including solid particles therein. The structure of the bottom and cover parts furthermore adds mechanical strength to the unit. The water flows into the tank where it is stored and again heated as the flue gases flow through the secondary heat exchanger. Rw is then solved using the stored associated numbers to obtain a result in terms of the associated numbers, and converting the result to entries from the matrix R. The fluorescent probe for measuring magnesium ion according to the present invention has the structure represented by the following Formula I:. The core voltage controller determines a core voltage to be output to the CPU according to the partial line set to conform to the first standard.