| 摘要 |
<p>The dung-removal chain comprises a series of links in the form of frames with openings in a vertical plane, and C-shaped connecting links in a horizontal plane between them. Logs protrude sideways from the bottoms of the frame-type links. In the central part of each connecting link (2) are curved faces (2a) which engage the frame-type links (1). Oblique faces (2c) extend from the frame link towards the opening (2b) on one side.</p> |
