Nomenclature: Spontaneous osteonecrosis of the knee (SONK) was previously used synonymously, but term is considered misnomer given underlying etiopathogenesis corresponds to insufficiency fracture.

命名：既往曾称为膝关节自发性骨坏死，但这一命名不能反映技能不全性骨折的发病机理。

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Spontaneous water imbibition phenomena exist in the most of oil-gas reservoirs especially in the oil-gas reservoirs with active edge water or bottom water and fracture-type oil-gas reservoirs.

渗吸现象存在于大多数油气藏中，尤其是具有活跃边底水的油气藏和裂缝性油气藏。

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