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1·Downdraft can be designed to produce relatively tar-free gas.

吸式设计，可以产生相对焦油无气。

2·But most of them shows the desulfurization of SO_2 in oxygen free gas.

但大部分研究仅限于无氧尾气中SO_2的脱除。

3·Both free gas and dissolved gas play important roles in the reservoir-drive mechanism.

游离气或溶解气二者在储层驱动机理中都起着重要作用。

4·Maybe we should offer free gas for a year to people who buy a car before the end of the month.

也许我们应该向在本月底前买车的顾客提供免费加油一整年的优惠。

5·The near-term climate benefits of a global dash for sulphur-free gas may thus be smaller than might be expected.

如今全球正在争先恐后地开采无硫天然气，这种做法短期内也许不能像预期的那样显著改善全球气候。

6·Last year, Gearsville implemented a policy that rewards people who share rides to work with coupons for free gas.

去年，Gears ville实施了一项政策，奖励那些合伙搭车上下班的人以免费的汽油券。

7·An oil reservoir with a free gas cap that supplies the energy to sweep the oil through the reservoir rock into the Wells.

具有游离气顶的油藏。气顶供给驱扫能量，使油经储层岩石流入井内。

8·Then came a technological breakthrough in the United State, where firms found a way to free gas previously trapped in shale rocks.

后来，美国在技术上有了新突破，一些公司发现了从岩石中提取天然气的方法。

9·Then came a technological breakthrough in the United States, where firms found a way to free gas previously trapped in shale rocks.

后来美国出现了技术突破，一些公司发现了从页岩中提取天然气的方法。

10·Experimental results show that the free gas has no obvious influence on electromagnetic radiation, but gas in adsorbed status does.

结果表明，孔隙中的自由瓦斯气体对电磁辐射没有明显的影响，而吸附瓦斯气体对电磁辐射有非常明显的影响。