In the past, most companies have been required to recover the seafloor hardware which was above the mudline, and leave buried hardware such as pipelines in place.
过去，大部分公司需要回收海底平面以上的设备，而那些埋藏在地下的设备可以废弃，例如埋入海底的管线。
The advantage of the mudline pump is that it fits into an existing infrastructure with minor and cost-efficient modifications, yet is smaller and lighter than the pump it replaces.
该泥浆泵的优点是在原设备的基础上进行小规模低成本的改造，但比原先的设备更小、更轻。
Different from cyclic loading acted on onshore foundation, the wave pressure plays double roles as: the surface loading imposed on the mudline and the boundary condition of excess pore pressure.
与常规陆上荷载不同，波压力不仅是外加的循环表面力，而且是海床表面的超静孔隙水压力边界条件。
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