【Key words】 the offshore platform； structure damage recognition； health monitoring； relative total displacement law；
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The offshore platform is the infrastructure producing oil, so the safe level of platform affects not only human’s life but also the development of the country.
海洋平台作为石油开采的重要设施,其结构安全水平不仅与人员的生命财产有关,更与国家的现代化进程密切相关。
参考来源 - 导管架平台结构构件可靠度的生活质量指标优化决策Three aspects are included as follows: Firstly, the organization characteristics and the scope of the applicability about the renovating and alternating projects on the offshore platform.
研究内容主要包括如下三方面:第一,海上平台更新改造项目的组织特点和适用范围。
参考来源 - 海上平台更新改造项目风险管理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The dynamic performance and stability of the offshore platform with bucket foundation vary with the underwater depth on raising and lowering.
桶形基础平台在下沉和上浮的过程中，动态性能以及稳定性都会随吃水深度的不同而发生变化。
In this paper, linear wave theory and wave superposition method are used to study dynamic behavior of oil or gas production risers on the offshore platform.
本文应用线性波理论，通过波浪叠加法，探讨了海洋平台油气生产立管系统的动力性质。
The safety analysis of offshore platform is more and more important, because the offshore platform is the basic establishment for Marine oil and gas exploitation.
作为海洋油气资源开发的基础性设施，海洋平台的安全特性越来越受到人们的重视。
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