| 摘要 |
<p>Replacing a section (10) of a primary circuit duct (8) uses a remote controlled or programmed unit inside the duct to perform at least one of the machining, monitoring or welding operations, introduced through the first or second components (3, 4) of the circuit. The process can be used to replace a circuit duct section with branches (16a, 16b, 16c) for auxiliary lines (16'a, 16'b, 16'c), which are cut out before the duct section is removed, and connected up to the replacement section.</p> |
