| 摘要 |
A cleaning preparation method, comprising: providing a part with an internal cavity. an opening, and foreign material within the cavity; and creating an additional opening in the part adjacent the foreign material. A cleaning method, comprising: providing a part with an internal cavity and an opening; creating an additional opening in the part; and flushing the cavity with a fluid. The additional opening acts as an exit or entrance for the fluid. A repair method, comprising: providing a part with an internal cavity, an opening and foreign material within the cavity; creating an additional opening in the part; and removing the foreign material through the additional opening. A part, comprising: an exterior surface; an internal cavity; an opening through the surface to the cavity; and a repaired section of the surface, which was an additional opening that provided a temporary exit or entrance to the cavity for foreign material removal.
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