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。
2
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。
3
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.