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https://www.youtube.com/watch?v=VQ2JaJGqcQs
Halloween or Hallowe'en (a contraction of Hallows' Even or Hallows' Evening), also known as Allhalloween, All Hallows' Eve,or…
https://www.youtube.com/watch?v=0RZUET-MdXw&list=PLCyJUW1YwFqhfINwg_TUalHboBSdvVVXh&index=4
Location: Taichung TaiwanDistance: 1367mDepth: 40mHorizontal Curve: 1500mEntry Angle: 12degExit Angle: 10degGround: Cobble, Clay and SandPipeline: 36” steel pipeJob…
https://www.youtube.com/watch?v=UWaq-9H_HeE
Sonar pipeline inspection system applied acoustic method to inspect the condition of liquid-filled pipe. It can provide the…