| 摘要 |
<p>The central control point for monitoring engines etc., includes a cupboard or panel to which is attached one or more frames for holding instruments. The frame is rectangular, and made from angle section material enclosing a rectangular opening. The two short sides each have two holes for securing bolts and a D-shaped handle. The two long sides are shaped for attachment of rails to receive the sliding parts of the measuring instruments. The outside surface of the angle frame is suitably finished, and a small return flange retains a sealing strip all the way round. The corners are rounded.</p> |
