2. We must find economical methods for extracting oil from shale.
我们必须找到从页岩中采油的经济方法。
《新英汉大辞典》
3. In anticipation of a demand surge, the oil majors have started opening their wallets for expensive gas projects like gas liquefaction plants and pricey gas shale wells.
4. By some estimates, shale gas has more than tripled the lifespan of US gas reserves to more than 100 years and experts say there is similar potential in China.
6. Natural gas from shale may help alleviate some of the U.S. demand, he says, but that will require a big investment in infrastructure.
他说，来自页岩中的天然气可能帮助美国缓解一些需求，但这将需要基础设施方面的大量投资。
www.hxen.com
7. In the pale light of the tunnel, 30-foot fossil traces of lycopsid gleam slickly in the shale roof like alligator skins.
在隧道内黯淡的灯光下，页岩顶部30英尺长的石松化石遗迹就像鳄鱼皮般发出柔滑的光亮。
article.yeeyan.org
8. Recent technological breakthroughs have made natural gas extracted from shale more available, but that will not eliminate the use of coal.
近来科技上的突破可以让人们更有效地从页岩中提取天然气，但这不能根除对煤的使用。
gb.cri.cn
9. As we excavate blocks of fine-grained sediment — primarily shale — looking for clues to the past, the pivotal role played by that ancient time period is always on our mind.
