Design and development of a two post rotary-percussion drilling rig
| Argitaratua izan da: | Philippine Engineering Journal Vol. 16, no. 1 (1995), 103-118 |
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| Egile nagusia: | |
| Formatua: | Artikulua |
| Hizkuntza: | English |
| Argitaratua: |
1995
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| Gaiak: |