| 摘要 |
<p>The standard (10) has multiple calibration gauge blocks (13A-13C) interposed between two of multiple calibration cylinders (12A-12C) such that end faces of the blocks are in contact with walls of the two cylinders. A flat plate (11) is provided, in which the cylinders and gauge blocks are fastened to the flat plate and conjointly form a triangle, where diameter of each cylinder is equal to twice the width of the gauge blocks in contact with the cylinders. Bearing and alignment rulers (14A-14C) are extended alongside of the gauge blocks and the cylinders and fastened to the flat plate.</p> |
