| 摘要 |
<p>The steel storage tank inside Fiber Reinforced Plastics (PRP) double shell structure includes a steel storage tank, Fiber Reinforced Plastics that is provided on the inner peripheral surface of the steel storage tank to prevent oil leakage from the steel storage tank, a spacer that is provided between the steel storage tank and the Fiber Reinforced Plastics, detector that detects corrosion or pitting at the steel storage tank, an alarm that informs about an imperfection of the steel storage tank based on the output of the detector. co~ Ue)</p> |
