PDF(1627 KB)
A STUDY ON ROCK DRILLING ACTION OF ONE CONE OF ROLLER-CONE BIT
WANG Qing-feng;ZHU Cai-chao;SONG Chao-sheng;LU Bo;FENG Dai-hui
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (10) : 108-112.
PDF(1627 KB)
PDF(1627 KB)
A STUDY ON ROCK DRILLING ACTION OF ONE CONE OF ROLLER-CONE BIT
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