There's water and there's sulphur dioxide.

这是水分子，这是二氧化硫分子。

And that sulphuric acid is made by sulphur dioxide coming out of volcanoes on the surface.

这些硫酸来源于二氧化硫产生于地表火山。

But there was no incentive for the power plants to stop emitting sulphur dioxide.

但发电厂没有动力停止排放二氧化硫。

Sulphur dioxide and nitrogen oxide combine to form acid rain.

【form】二氧化硫和氮氧化物结合形成酸雨。

The sulphur dioxide level in the air was 32 parts per billion.

【part】空气中二氧化硫是十亿分之三十二。

The rest of the gas is nitrogen, carbon dioxide, sulphur dioxide, methane, ammonia and hydrogen.

剩下气是氮气、二氧化碳等气。

They're carrying devices that measure gases, especially sulphur dioxide, which can pose a danger to health and even be fatal.

他们气​​设备，尤其是二氧化硫， 这可能对健康构成威胁， 甚至是致命。

Fumigants such as hydrogen cyanide, sulphur dioxide and DDT itself are now regarded in most places as too toxic to use.

氰化氢、二氧化硫和滴滴涕等熏蒸剂本身现在在大多数地方都被认为毒性太大而无法使用。

Sulphur dioxide is particularly influential because of how it combines with water to form sulphuric aerosols—a light-scattering haze which hangs in the sky.

二氧化硫影响尤其大，因为它与水结合形成硫磺气溶胶——一种悬浮在天空中光散射薄雾。

Gas-fired stations emit much less carbon dioxide, per unit of electricity, than coal, which also gives off all sorts of other nasties when burned, from sulphur dioxide to mercury.

生产同一单位电，燃气发电厂排放二氧化碳比燃煤发电厂排放少。除此之外，煤在燃烧时也会产生各种有害气，包括二氧化硫和汞。

This would involve using sulphur or hydrogen sulphide aerosols so that sulphur dioxide would form clouds, which would, in turn, lead to a global dimming.

气雾剂成分主要是硫或氢化硫，这样一来二氧化硫就会形成云层，因而就会实现全球变暗。

Older volcanic rocks tend to emit less infrared, say the researchers, because carbon dioxide and sulphur dioxide in the planet's atmosphere weather the rocks and change their composition.

研究人员说，较旧火山岩往往发出较少红外线，因为二氧化碳和二氧化硫在地球大气中使岩石风化并改变它们成分。

For years, its power stations had been emitting large amounts of sulphur dioxide, which was falling back to Earth as acid rain, causing harm to plants, aquatic animals and infrastructure.

多年来，它发电站一直在排放大二氧化硫，这些二氧化硫以酸雨形式回落到地球上，对植物、水生动物和基础设施造成伤害。

The idea is to inject sulphur dioxide—or perhaps other chemicals such as calcium carbonate or powders made of aluminium or diamonds—not into the troposphere, but the stratosphere, which begins up to 20km above the surface.

这个想法是将二氧化硫——或者可能是其他化学物质， 如碳酸钙或由铝或钻石制成粉末——不是注入对流层，而是注入平流层， 平流层开始于距地表 20 公里处。