| 摘要 |
<p>The turbine is in two parts and has an earthenware base (1) with sloping sides. The base may be oval or rectangular with rounded corners. The base supports a container (2) which may be made out of plastics or foil. The container lines the inner surface of the base. The base has a central hole (4) along part of its length, which allows the container to be pushed out of the base from the bottom. The single hole may be replaced by two or three smaller holes.</p> |
