| 摘要 |
A method and apparatus comprises a first section, a second section, and a middle section. The first section is configured to be connected to a first structure. The second section is configured to be connected to a second structure. The first structure and the second structure are connected to each other at a joint. The middle section is located between the first section and the second section. The middle section has a length that is configured to change in response to a movement between the first structure and the second structure. The first section, the middle section, and the second section form a cover that is configured to form a seal for the joint.
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