Ngā hua rapu - "Groundwater Papua New Guinea Madang Province"
Ngā kaupapa kua whakahuatia i roto i tō rapu.
Ngā kaupapa kua whakahuatia i roto i tō rapu.
- Groundwater 2
- Boring 1
- Geology 1
- Water-supply 1
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1
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2