검색결과 : 1건
| No. | Article |
|---|---|
| 1 |
COMBINED PERCUSSIVE-ROTARY DRILLING TO INCREASE RATE OF PENETRATION AND LIFE OF DRILL BIT IN DRILLING HARD ROCK FORMATION Zha CQ, Liu GH, Li J, Li YM, Xi Y, Guo BY Chemistry and Technology of Fuels and Oils, 53(2), 254, 2017 |