finish second spud or finish 17.5"(eg.) hole(section)
hold pre-job inspection of 12 1/4"(eg.) hole (section)
石油钻井方面的二开完钻 三开验收 应该怎样翻成英文才确切?
finish second spud or finish 17.5"(eg.) hole(section)
hold pre-job inspection of 12 1/4"(eg.) hole (section)