If the centerboard is not weighted, like the fiberglass centerboards of many small sailboats, then sailors must keep the boat upright by positioning their own weight on the upwind side of the boat.
如果活动龙骨不带负重，例如许多小型帆船使用的玻璃纤维活动龙骨，那么水手们必须通过将他们自己的体重压在船只的逆风侧来保持船只直立。
If the centerboard is not weighted, like the fiberglass centerboards of many small sailboats, then sailors must keep the boat upright by positioning their own weight on the upwind side of the boat.
如果活动龙骨不带负重，例如许多小型帆船使用的玻璃纤维活动龙骨，那么水手们必须通过将他们自己的体重压在船只的逆风侧来保持船只直立。
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