Complex sentence: A "standard miter saw" has a single point from which the blade pivots up and down 90 degrees to the table; it can cut angles with the workpiece lying flat or sitting on edge in order to accomplish angles or bevels.
Split into simpler sentences: A "standard miter saw" has a single point from which the blade pivots up and down 90 degrees to the table. Standard miter saw can cut angles with the board laying flat or sitting on edge, to accomplish angles or bevels.