摘要
20031478 Hu Maozhong (63653 Troop, PLA, Xi’an, Shaanxi) Yao Ningping Application of Foam Drilling Technology in Gobi Desert, West China (Coal Geology & Exploration, ISSN 1001-1986, CN61-1155/P, 30(4), 2002, p. 63-64, 3 refs. ) keywords: foam drillingIn the western part of China, the Gobi Desert is most dry area, where drilling engineering is difficulty and the coast is high.
