How to use LongTranslateValue and ShortTranslateValue

How to use LongTranslateValue and ShortTranslateValue

How to use LongTranslateValue and ShortTranslateValue for get description of translate value of field.

ShortTranslateValue Systax :
&VALUE = &MYFIELD.ShortTranslateValue;

LongTranslateValue Systax :
&VALUE = &MYFIELD.LongTranslateValue;