Sentence:  Over a temperature range from 25 to 200 * * f and at pressures up to 250 atm , an overload of 300 psi , <WSD>applied</WSD> for a period of one day , results in an uncertainty in the pressure of , at most , one millimeter of mercury . 
Meaning of the word marked with <WSD> tags:  put into service; make work or employ for a particular purpose or for its inherent or natural purpose