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名字:

Berhanu

姓氏:

Fentaw

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Paved and grassed waterways
technologies

Paved and grassed waterways [埃塞俄比亚]

A waterway is an artficial drainage channel constructed along the steepest slope to receive runoff from cutoff drains and graded structures and drain to the natural waterway safely.

  • 编制者: Berhanu Fentaw