The head of the police station explained the details of the incident to the press.

Light metals are widely used in the manufacture of aircraft.

You can use a spectrometer to examine the composition of a substance.

The time complexity of this algorithm is O(n).

This rock is rich in silicate.

This product is made of high-quality silicone resin.

He suffered from trigeminal neuralgia for a long time.

He was diagnosed with glioma.

Alkenes, also known as olefin hydrocarbons, play an important role in organic chemistry.

Alkynes play a very important role in organic chemistry.