| 摘要 |
<p>The drive produces a reciprocating movement and is actuated hydraulically. It has two slides which are parallel and in the same plane. There is a piston and cylinder controlled by a membrane, via the first slide and the second slide is actuated by the piston in one direction and a cursor on a connecting rod in another, to actuate the membrane. There are passages between the housing and the two sides of the membrane, formed by flexible exterior conduits.</p> |
