| 摘要 |
A method and apparatus of servicing an interior of a large container (12;112) having a narrow access opening (14;114) comprising inserting a service apparatus (10;110) in a collapsed condition through the access opening (14;114), deploying the service apparatus (10,110) when within the container interior into an operative condition such that extremities of the apparatus extend toward a wall (16;116) of the container and performing a service operation on an internal wall surface (18;118) of the container while supported on the apparatus at a position toward one of said extremities. <IMAGE> |
