| 摘要 |
<p>A waste treatment chamber takes the form of a building enclosed between two parallel walls 36 and closed by a roof 42 and doors 38, 40 at both ends. The walls preferably provide support for a machine 24 which can travel the length of the walls to turn over the waste in the chamber. The machine preferably has a turning drum 32 on the end of an operating arm 34, and when turning is taking place, the machine is preferably above the roof 42 with the drum beneath the roof and the operating arm 34 extending through a longitudinal opening 46 in the roof. The opening is closed by a flexible seal 50 which can be displaced by the arm as the machine travels along the chamber, and reforms to close the opening when the arm moves on.</p> |
