https://www.youtube.com/watch?v=_cvf1vNtSSQ https://www.youtube.com/watch?v=fVI4MBdlJUg&t=39s
https://www.youtube.com/watch?v=UWaq-9H_HeE
https://www.youtube.com/watch?v=pbPgoPQpbK8
Halloween or Hallowe'en (a contraction of Hallows' Even or Hallows' Evening), also known as Allhalloween, All Hallows' Eve,or…
Sonar pipeline inspection system applied acoustic method to inspect the condition of liquid-filled pipe. It can provide the…
Location: Tainan City, Taiwan River and highway pipeline drilling and excavation Use device: paratrackII
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