factor of safety against floatation

例句：

1. 1. The factor of safety is crucial in preventing accidents during construction.
   在建筑施工中，安全系数至关重要，以防止事故。
2. 2. The engineer used a factor of safety of 3 to ensure the stability of the structure.
   工程师使用了一个安全系数为3来确保结构的稳定。
3. 3. The company has implemented a factor of safety measure to reduce the risk of fire during the manufacturing process.
   该公司已经实施了一项安全系数措施，以减少生产过程中火灾的风险。