块规:(也称、滑块,量块)经过精密研磨和检测标准。长方形、正方形、其他特别形状.钢、硬质合金、陶瓷材料。　它们被用作参考设定计量器具,如:千分尺、正弦规.千分表(用于检验作用)。Gauge blocks (also known as gauge blocks, Johansson gauges, slip gauges, Jo blocks, block gauges)are precision ground and lapped measuring standards. Rectangular, square, wear, scribing and angle gage blocks are available in hardened steel, carbide and ceramic materials.They are used as references for the setting of measuring equipment such as micrometers, sine bars, dial indicators (when used in an inspection role).