这些气体没有气味。
Sulphur gases were emitted by the volcano.
硫磺气体由火山喷发出来。
These gases pollute the atmosphere of towns and cities.
这些气体污染城镇的空气。
He passed an electric spark through a mixture of gases.
他使一束电火花穿过一团气体混合物。
The volcano spewed out more scorching volcanic ashes, gases, and rocks.
该火山喷出了更多灼热的火山灰、各种气体和岩石。
Inert gases like neon and argon have eight electrons in their outer shell.
像氖和氩这样的惰性气体，在它们的外电子层有8个电子。
The gases that may be warming the planet will have their main effect many years hence.
这些可能正在使行星变暖的气体，其重要影响将在许多年之后显现。
When gases are heated, they expand.
气体受热会膨胀。
Insect farming also produces far fewer greenhouse gases.
昆虫养殖产生的温室气体也少得多。
They fill these tubes with gases that glow when electrified.
他们在这些管子里注入了通电后会发光的气体。
We should lower the use of fuels that release greenhouse gases.
我们应该减少使用那些会释放温室气体的燃料。
Emission of these "greenhouse" gases contributes to global warming.
这些“温室”气体的排放会导致全球变暖。
Our use of fossil fuels is the main source of excess greenhouse gases.
我们对化石燃料的使用是温室气体过量的主要来源。
As a comet gets closer to the sun, some gases in it begin to unfreeze.
当彗星接近太阳时，其中的一些气体开始解冻。
It is believed that greenhouse gases are the main cause of global warming.
人们相信温室气体是全球变暖的主因。
It is believed that greenhouse gases are the main causes of global warming.
一般认为温室效应气体是导致全球变暖的主因。
The result would be higher emissions of carbon dioxide and other greenhouse gases.
其结果会是二氧化碳和其他温室气体的排放量增加。
In order to reduce global warming, emission of greenhouse gases needs to be reduced.
为了减缓全球变暖的现象，需要减少温室气体的排放。
We should minimize the use of private cars, which emit a large amount of greenhouse gases.
我们应该减少私家车的使用，因为私家车排放大量的温室气体。
Factories that gave out harmful gases were all shut down after the policy came into effect.
在政策生效之后，所有排放有害气体的工厂都关闭了。
Emitting too much greenhouse gases such as carbon dioxide lies at the root of global warming.
排放过多温室气体，如二氧化碳，是全球变暖的根本原因。
Explorers even need to wear special masks to protect themselves from the gases in these caves.
探险家们甚至需要戴上特殊的面具来保护自己不受洞穴里气体的伤害。
However, unlike Jupiter, the terrestrial planets today are nearly void of light gases and ices.
然而，如今的类地行星与木星不同，几乎没有轻气体和冰。
It's quite possible that this is due to volcanic eruptions, because volcanic eruptions often emit gases.
这很有可能是由于火山爆发，因为火山爆发经常释放气体。
The terrestrial planets are mostly rocks: dense rocky and metallic material, with minor amounts of gases.
类地行星主要是岩石：密度大的石块和金属物质，同时会有少量的气体。
Faced with the problem of climate change, we should find an effective method of reducing greenhouse gases.
面对气候变化的问题，我们应该寻找有效的措施来减少温室气体。
The shale was deposited in an oxygen-deficient lake where lethal gases sometimes bubbled up and killed animals.
页岩沉积在一个缺氧的湖泊里，那里有时会冒出致命的气体，杀死动物。
Some argued that humans weren't producing enough greenhouse gases, while others claimed the effects would be tiny.
一些人认为人类没有产生足够的温室气体，而另一些人则声称影响很小。
There are many procedures involved in the manufacture of food that result in greenhouse gases and other pollutants.
食品生产有许多道工序，这会带来温室气体和其他污染物。
The Boomerang Nebula's expansion creates a kind of cosmic refrigerator, allowing the gases to maintain their unusual cool.
回飞棒星云的膨胀创造了一种宇宙冰箱，使气体维持其异常的寒冷。
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