yichundahuasheng

yichundahuasheng

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  • Videos
  • The ocean’s “public technicians” have become regular guests in marine creatures’ mouths thanks to th
    0:52

    The ocean’s “public technicians” have become regular guests in marine creatures’ mouths thanks to th

    0 View

  • Dugongs and manatees look very similar, but their biggest differences lie in their tails and noses.
    0:55

    Dugongs and manatees look very similar, but their biggest differences lie in their tails and noses.

    3 Views

  • Throwing cement blocks with holes around the edges into the ocean can significantly improve the mari
    0:46

    Throwing cement blocks with holes around the edges into the ocean can significantly improve the mari

    1 View

  • Why are there so many irregularly shaped rocks piled up on the seaside breakwater?
    0:48

    Why are there so many irregularly shaped rocks piled up on the seaside breakwater?

    0 View

  • Principles of Directional Demolition Blasting
    0:56

    Principles of Directional Demolition Blasting

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