Hydrogen sulphide is a pungent colorless gas.

硫化氢是具有刺激性的无色气体。

In some situations, a large number of sulfides are being oxidized.

在一些情况下，大量的硫化物将会被氧化。

The next chapter of the book is about polymetallic sulphides.

这本书下一章的内容是多金属硫化物。

Black Sulphide of Antimony Antimony crudum, 30c.

黑色硫化物(Antimony crudum 30c)。

The surface layer consists of oxide, sulphide and N, C compound.

表层由氧化物、硫化物和氮（碳）化合物组成；

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量降低了80%。

Since containing hydrogen sulphide and microelements, it's called "sacred water".

由于含有大量硫化氢和多种微量元素，有“神水”之称。

There is diver above the layer of hydrogen sulphide, what looks like underwater river.

在硫化氢层的上面有一个潜水员，硫化氢层看上去好像是条水下河流。