.getUnitConstraints().getConstraints();
for (int i = 0; i < _constraintExpressions.size(); i++) {
UnitEquation uEq = (UnitEquation) (_constraintExpressions
.get(i));
String commonDesc = uEq.descriptiveForm();
System.out.println("_constraint " + commonDesc);
_constraintExpression.add(commonDesc);
}
}