| 摘要 |
<p>An elongate rotatable drum for use in a windrow turning apparatus, the drum comprising paddles adapted to engage with material in the windrow, the paddles comprising at least one pair of opposed rows, each row comprising a plurality of paddles defining a helical path along the drum, the helical path of the paddles on said one opposed row and the helical path of the paddles on the other said opposed row promoting movement of said material to a common focal area. Also provided is a composting machine incorporating the drum. / r e ei JiG</p> |
