Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.
即使是元素状态为气体的氮，也通常作为硝酸根离子从土壤中被吸收。
The level of formaldehyde gas in her kitchen was twice the maximum allowed by federal standards for chemical workers.
她厨房的甲醛气体含量是联邦为化工工人设立的最大值标准的两倍。
The amount of oil and natural gas in the Earth was still plentiful.
地球上的石油和天然气储量仍然丰富。
Because I put more gas in there.
因为我放入了更多的气体。
I know I'll always need gas in my vehicle.
我知道我的交通工具需要大量的汽油。
Make Sure They Have Enough Gas in the tank.
保证他们的有足够的动力。
CO2 is also a major greenhouse gas in Earth's atmosphere.
二氧化碳也是在地球大气中的一个主要的温室气体。
"We don't see any solar noble gas in the mantle," he says.
他说：“我们没有看到仍和太阳能惰性气体在地幔之中。”
What that means is, I've got my ideal gas in some container.
这意味着，我们把理想气体装在一个容器中。
It says pure gas in the notes, but of course that isn't the pure gas.
讲义说是纯气体，但是当然不是纯气体。
That explosion was triggered by an accumulation of gas in an unventilated tunnel.
爆炸是由于瓦斯气体在通风不良的矿井中聚集而产生的。
Neon, a rare gas in the air, takes only fractional percentage point of the volume.
氖是空气中的稀有气体，只占空气体积的千分之几。
The accord will allow companies to explore for oil and gas in the 68,000 square mile area.
依据该协议，两国公司将在6.8万平方英里的海域勘探石油和天然气。
Scottish chemist Joseph Black discovered and isolated this potent greenhouse gas in the 1750s.
1750年代，苏格兰化学家约瑟夫·布莱克发现并分离了这种强有力的温室气体。
You have to have a gas in there because of the ideal gas for the approximation that goes in here.
气体必须出现在相变中，因为这里出现了理想气体近似。
The oil and gas in this region are under more than a mile of water and a thick layer of salt.
这个海域的油气埋藏在一英里多的水面下，还要打穿厚厚的盐层。
Natural gas in storage, meanwhile, climbed 63 billion cubic feet in the week that ended Aug. 7.
同时，天然气库存在8月7号这个周末攀升了630亿立方米。
It was seen in 1987 amid vast billows of gas in the Tarantula Nebula within the Large Magellanic Cloud.
1987年科学家们在大麦哲伦星云里的蜘蛛星云的波涛滚滚的巨大气云中观测到这颗超新星。
But the move to gas, and to shale-gas in particular, demands a shift in the majors' business models.
向天然气，尤其是页岩气的转型，需要油气专业公司转变商业模式。
By using telescopes in Chile, the astronomers measured Doppler shifts and thus velocities of gas in the Trifid.
利用智利的天文望远镜，天文学家测量了三裂星云中气体的多普勒频移和速度。
The heat breaks the biomass down into a charcoal-like solid and the bio-oil, giving off some gas in the process.
这种情况下，加热会把生物原料变成木炭似的固体物质和生物原油，同时释放某些气体。
The inner envelope holds helium in the head section of the blimp and an ethane fuel gas in the three tail sections.
飞船头部的内置气囊中充满了氦气，而置于尾部的第三节内置气囊则充满了乙烷可燃气体。
Collisions between gas in the inner and outer regions are creating many hot blue stars and pink emission nebula.
内外层气体的碰撞产生了许多热的蓝色星体和粉红发射星云。
UNDERSTANDING how the oceans absorb carbon dioxide is crucial to understanding the role of that gas in the climate.
认识海洋怎样吸收二氧化碳对于认识二氧化碳在气候中扮演的角色十分关键。
The "first-time smartphone buyer" is a bit of a mythical creature, like a perfect gas in physics, or a unicorn or jackalope.
“首次购买智能机的用户”是一个有点神秘的东西，就像物理学中的理想气体、或是一头独角兽或鹿角兔。
The stars form when gas in the cloud condenses under its own gravity and becomes packed enough to ignite nuclear fusion.
星云中的气体在它的重力下凝聚形成新星，新星变得足够满以避免核聚变。
Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.
在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。
The colors map emission from ionized gas in the nebula were recorded by the Hubble Space Telescope's Advanced Camera for Surveys.
哈勃太空望远镜的先进探测照相机记录下了星云中电离气体辐射所造成的彩色地图。
The colors map emission from ionized gas in the nebula were recorded by the Hubble Space Telescope's Advanced Camera for Surveys.
哈勃太空望远镜的先进探测照相机记录下了星云中电离气体辐射所造成的彩色地图。
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