【判断题】The sacrifice ratio is the percentage point increase in the unemployment rate created in the process of reducing inflation by one percentage point.
【简答题】______________is the process of reducing the thickness (or changing the cross-section) of a long workpiece by compressive forces applied through a set of rolls.
【简答题】__________the process of reducing the thickness (or changing the cross-section(横截面)) of a long workpiece by compressive forces applied through a set of rolls(轧辊).