| 摘要 |
A thin film evaporator comprising an element having a conical, interior surface thereon which surface defines an evaporator surface and an outer casing within which the element is disposed is further provided with a support casing intermediate the said element and outer casing, the said support casing being permeable to the heat exchange medium and being connected, with the element providing the evaporator surface, at at least one location intermediate the axial limits thereof.
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