单词：hydraulic mining machinery
单词：hydraulic mining machinery 相关文章
What is fracking? It is a way of getting gas or oil from inside rock, deep underground. Mining companies break the rock using water. This week, the Commissioner for the Environment gave a report on fracking in New Zealand. She said that the mining co
新西兰英语
By Naomi Schwarz Bo, Sierra Leone 22 October 2007 As Sierra Leone's recently elected president, Ernest Koroma, begins governing, many observers are watching to see how he will tackle corruption. Some say corruption is the reason the country's huge di
2007年VOA常速英语（十月）
By Malcolm Brown Washington, D.C. 24 July 2007 The future of coal has become a hot topic in the United States. The debate sets concerns about global warming against the desire to reduce America's dependence on foreign energy sources. With the United
2007年VOA标准英语（七月）
Study: No Evidence Hydraulic Fracturing Pollutes Water A new study finds no evidence that the controversial practice to extract natural gas known as hydraulic fracturing is contaminating ground water. The report, Separating Fact from Fiction in Shale
VOA标准英语2012年(二月)
Natural Gas, Environmental Regulations Hurt US Coal Regions 天然气的使用伤害了美国煤炭产区的利益 洛根,西弗吉尼亚州许多发电厂在美国使用的是天然气代替煤发电,减少二氧化碳的排放量。虽然这可能是
VOA常速英语2013年(八月)
And when the markets in Europe closed a couple of hours ago, Londons FTSE 100 was down 28 points. The Dax and Euro were also down. In the US, trading comes to a close shortly. The Dow Jones is down. The SP 500 is down by seven points. And the Austral
澳洲ABC新闻快递2013年