单词：rotary percussion drilling
单词：rotary percussion drilling 相关文章
U.S. President George Bush is again calling on opposition Democrats in Congress to expand offshore oil drilling. VOA White House Correspondent Scott Stearns reports, high energy prices are a big part of this year's presidential campaign. President G
VOA标准英语2008年（八月）
Environmentalists claim the drilling could contaminate New York's unfiltered drinking water sources with dangerous chemicals and radioactivity Carolyn Weaver | New York 24 December 2009 Photo: Sabine Aronowsky Manhattan borough president Scott String
VOA标准英语2009年(十二月)
By Cynthia Kirk ENVIRONMENT REPORT - April 26, 2002: Arctic Refuge Drilling This is the VOA Special English ENVIRONMENT REPORT. The Democratic-controlled United States Senate has voted to block explor
健康与环境
oil field 油田 wildcat 盲目开掘的油井 percussive drilling 冲击钻探 rotary drilling 旋转钻探 offshore drilling 海底钻探 well 井，油井 derrick 井架 Christmas tree 采油树 cr
英文语法词汇
It's hot a Sunday afternoon, but this Beijing's samba percussion ensemble is putting on an exuberating performance to an equally excited audience: me. Templo do samba founded by American percussionist Jimmy Biala, has been giving classes and performa
2016CRI中国国际广播电台
Stomp is returning to Beijing! It's the thrilling spectacle of percussion and visual comedy that has swept the world since its inception in 1991. To date, more than 20,000 performances have been staged, entertaining more than 12 million people in 53
cctv9英语新闻2016年