They found hydrogen sulphide levels decreased in 80% of participants.

他们发现受试者口腔内的硫化氢含80%。

That distribution gives the sensor the sensitivity it needs to detect trace amounts of H2S.

这种分布方式让传感器拥有检测微硫化氢所需的灵敏度。

Hydrogen sulphide gas bubbles up from oil deposits in the Earth's crust.

硫化氢气体从地壳内的油气储层中溢出。

Second, it's about what scientists say they've detected in the planet's clouds, hydrogen sulfide.

其次，这是科学家所说的，他们在地球的云层中发现硫化氢。

The main toxic gases are carbon monoxide, carbon dioxide, hydrogen sulfide, and nitrogen oxide.

主要有毒气体是一氧化碳、二氧化碳、硫化氢和氮氧化物。

The hydrogen sulfide reacted with oxygen in rainwater moving through the rock.

硫化氢与流过岩石的雨水中的氧气反应。

The action of oil and natural gas created hydrogen sulfide in the limestone.

石油和天然气的作用在石灰岩中产生硫化氢。

Which is about a fifth as much H2S as you'd need to have stank breath.

而五倍这种浓度的硫化氢才会产生口臭。

At super high concentrations, it can be toxic like hydrogen sulfide.

在极高浓度下，和硫化氢一样有毒性。

Hydrogen sulfide is a colorless gas that smells like rotten eggs.

硫化氢是闻起来像臭鸡蛋的无色气体。

Jupiter, too, has small amounts of hydrogen sulfide in its atmosphere.

木星的大气层中也有少的硫化氢。

But the exoplanet was previously not thought to hold hydrogen sulfide.

但是，这颗系外行星此前被认为并不存在硫化氢。

The gas is a hydrogen sulphide mix that corrodes every surface it lands on.

这种气体是一种硫化氢的混物，其所到之处，必受腐蚀。

The hydrogen sulphide that these men must breathe in is 40 times the safe level.

他们吸进的硫化氢是安全限度的四十倍。

They're also monitoring the air for traces of hydrogen sulfide and sulfur dioxide.

他们还在监测空气中硫化氢和二氧化硫的痕迹。

These gases are a death filled cocktail of hydrochloric acid, hydrogen, hydrogen sulfide, and sulfur dioxide.

这些气体是由盐酸、氢气、硫化氢和二氧化硫混而成的致命混物。

These sediments were anoxic, or poor in oxygen, and they were also full of hydrogen sulfide.

这些沉积物是缺氧的或含氧很的，并且它们充满硫化氢。

Fortunately for us, farts contain tiny amounts of it.

幸运的是，屁中含有极少硫化氢。

It warned some communities about high levels of hydrogen sulfide gas escaping from the rotting algae.

它警告一些社区注意从腐烂的海藻中释放出的高浓度的硫化氢气体。

But, as they watched the beakers, a bunch of the hydrogen sulfide seemed to be disappearing.

但是，当他们观察烧杯时，一束硫化氢似乎正在消失。