Here the aft hull bottom looks a bit worse for wear, regardless of the looks the repairing epoxy has seeped into all the cracks resulting in a sound structure.

在这里，尾部船体底部看起来有点严重磨损，无论其外观修复环氧树脂已渗透到所有的裂缝造成的，在一个健全的结构。

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The study of the critical production and water breakthrough from an oil well in a bottom water reservoir should be based on sound understanding of water coning shape in it first of all.

研究底水油藏油井的临界产量和见水时间等问题时，首先要对水锥的形态有一个正确的认识。

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