When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.
当井和一个水池相接时，油通常会从井里上升，因为它与井下的水的密度不同，或者因为停留在它上方的膨胀气体的压力。
That breaks up shale formations, releasing the gas trapped inside so it can be pumped to the surface.
这会破坏页岩层的构造，致使储藏其间的气体被挤出地表。
When this happens, it can cause the removal of the hydrate layer, releasing the methane gas trapped below.
当发生这种情况时，它会引起的水合物层的消失，被困在下面的甲烷气体便释放出来。
The old continent has nearly as much technically recoverable shale gas (natural gas trapped in shale formations) as America.
欧洲大陆通过技术再生的页岩气(页岩形成中获取的天然气)几乎和美国一样多。
After a decade of stability, the experts are worried about a possible thaw of vast stores of the gas trapped in permafrost.
在过去十年的稳定状况之后，专家们担心大量贮于永冻层中的沼气可能融化。
During its operation, the equipment is able to discharge automatically the gas trapped in the measuring circuit and performs self-protection and alarm automatically after fuel cutting-off.
工作时能自动排放测量油路内积存的气体，切断燃油后能自动完成安全保护与报警。
They are all looking for natural gas trapped in shale (a type of flaky sedimentary rock) -are source that has transformed the market for gas in America and may have a big impact on Europe, too.
他们都在寻找储存在叶岩(一种易于剥落的沉积性岩石)上的天然气。这种天然气已经改写了美国的天然气市场格局，也将在欧洲市场上有一番作为。
The one-meter-long bot can also report the presence of gas and can even haul supplies—to help ensure that trapped miners have a better chance to see daylight again.
这台仅有一米高的机器人还能汇报环境的气体情况并且运送营救物资。 它的诞生确保了那些被困住的矿工有更大的生还机会。
However, this is hardly proof that they will find anything worth extracting. At this stage no one actually knows how much gas is trapped in Polish shale.
但是这并不能证明他们就会在波兰开采到有用的东西，眼下没有人知道在波兰地下的页岩层中到底藏有多少页岩气。
One is gas hydrates—white, sorbet-like compounds that usually consist of methane molecules trapped in a cage of water.
一个是气体水合物，这是一种白色的、类似果汁冰糕的混合物，通常由嵌入笼形水结构的甲烷组成。
Pressure mounted Monday to launch a search for 29 men trapped in a New Zealand coal mine for three days since a gas explosion, but the mine remained too dangerous to enter.
到周一为止，自新西兰煤矿毒气爆炸已经过去三天，关于营救被困29名矿工的舆论压力不断增加，但由于矿井内毒气太重而无法施救。
Twenty miners were trapped underground after the gas explosion.
瓦斯爆炸后有二十名矿工被困井下。
Found underground and on the sea floor, methane hydrate consists of natural gas molecules trapped within a lattice of frozen water molecules.
甲烷水合物主要存在于地下以及海底，由甲烷分子被锁在固态水晶体格中所组成。
Like America, Europe has vast beds of shale rock, in which innumerable bubbles of natural gas are trapped.
欧洲有丰富的页岩底层，比如在美国能捕获无数天然气的气泡。
Recent computer modeling speculates the event would be violent, unleashing tremendous light as gas is trapped between the two black holes and then rushes toward the more massive one.
最近的计算机模式推测，这种合并事件是非常火爆的，它们释放出巨大的光芒，两个黑洞之间的气体被严重压缩，然后冲向更多的巨大的黑洞。
At least 14 miners are trapped underground at a coal mine in Mexico following a gas explosion. It happened in the northern state of Coahuila.
墨西哥北部科阿韦拉州一座煤矿发生瓦斯爆炸，造成至少14名矿工被困井下。
Kenawy's exhibit at told Untold Retold features a small room built from about 200 propane-gas cylinders.It is, Bardouil says, a symbol for oppression, of being trapped.
在本次“讲述，未述，复述”展出上，她用200个丙烷气罐搭了一个小屋，巴达欧叶说，这代表着压迫和困境。
Between 700 trillion and 10,000 trillion tons of methane hydrate, a powerful greenhouse gas, are trapped in the seafloor sediments where they've accumulated over millions of years.
经过数百万年的积累，甲烷水合物被储存在海底沉积物当中，这是一种强大的温室气体，数量介于700万亿至10000万亿吨之间。
To prevent cryogenic liquids or cold gas from being trapped in piping between valves, equip the piping with pressure-relief devices.
为了防止低温液体或低温气体积聚在阀门之间的管道内，要给管道配备减压装置。
To prevent cryogenic liquids or cold gas from being trapped in piping between valves, the piping should be equipped with pressure relief devices.
为了防止低温液体或低温气体积聚在阀门之间的管道内，要给管道配备减压装置。
Munching on a piece of minty fresh gum makes you swallow too much air, which gets trapped in your digestive system causing pressure, bloating and gas.
嚼一片薄荷味口香糖会让你吞下大量空气，这些空气困在你的消化系统里，会产生压力、腹胀和废气。
More generally, hydrates are compounds in which gas molecules are trapped within a crystal structure.
更常见到的水合物是气体分子被圈闭在一个晶体构造内的化合物。
After all, there are still calls to limit heat-trapped greenhouse-gas emissions, but a growing number of experts are also saying what was once unthinkable: Humans may have to adapt to a warmer globe.
毕竟，还是有呼吁要求限制聚热的二氧化碳、甲烷等导致温室效应的气体排放，但越来越多的专家们也宣告了曾经难以想象的情况：人类可能不得不去适应一个更热的世界。
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。
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。
One is gas hydrates -white, sorbet-like compounds that usually consist of methane molecules trapped in a cage of water.
一个是气体水合物，这是一种白色的、类似果汁冰糕的混合物，通常由嵌入笼形水结构的甲烷组成。
All 166 miners trapped underground in a coal mine gas blast, were confirmed dead yesterday.
由于瓦斯爆炸而身陷煤矿底下的166名矿工昨天被证实已全部死亡。
All 166 miners trapped underground in a coal mine gas blast, were confirmed dead yesterday.
由于瓦斯爆炸而身陷煤矿底下的166名矿工昨天被证实已全部死亡。
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