单词：drilling head
drilling head的用法和样例：
例句
- Drilling is cutting a hole with a drill.钻削就是用钻头钻一个孔。
- In drilling an oil well, mud is used to lubricate the cutting bit.钻油井时，泥浆被用来润滑钻头。
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英文名句短语
ARI SHAPIRO, HOST: President Trump will sign an executive order tomorrow that aims to expand offshore drilling. The order will essentially try to undo actions taken by his predecessor, Barack Obama, that restricted drilling in the Arctic Pacific and
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Parliament is discussing a new Crown Minerals Bill at the moment. The Crown (which means the government) owns any oil, gas or other mineral resources in the sea around our country. The government wants to make it easy for overseas oil companies to dr
新西兰英语
The AP is reporting all ten people accused of spying for Russia pleaded guilty in a New York courtroom at this hour. The hearing is expected to spur the largest US-Russian spy swap since the Cold War. Officials tell NPR the ten will be swapped for sp
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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）
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VOA标准英语2009年(十二月)
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VOA标准英语2012年(四月)
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PBS访谈环境系列
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纸牌屋第一季
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
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阅读空间
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2006年VOA标准英语（七月）
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经济学人综合
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英语新闻