| 摘要 |
A drainage system includes a drainage tube, a tubular coupling, and a drainage hose. The drainage tube defines an inner passage and terminating in a first drainage end and a second drainage end. The tubular coupling has a first thickness that runs throughout the coupling and forms a passage and a stop determined by a second thickness. The drainage hose is formed by a profile which runs along a length of the drainage hose and terminates in a first drainage end and a second drainage end.
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