Sentence examples for particles must be from inspiring English sources

But even dots have responsibilities; even mere particles must be accountable to those who will follow.

Particles must be small to penetrate deep into human lungs, where they can start a lethal infection.

To "help allay public concern over official air quality readings", levels of ozone and PM2.5 particles must be included.

If they indeed exist, all these new supersymmetric particles must be heavy to have escaped detection so far.

Levels of sulfur dioxide, closely associated with the formation of deadly fine soot particles, must be reduced beginning a year later.

For the powder to reach the lungs instead of sticking to the straw or the throat, the particles must be dispersed evenly in the airstream.

Weapons experts say the particles must be one to five microns wide; 20 of them would line up across the stalk of a human hair.

To overcome the electrical repulsion, the particles must be moving rapidly, as they will be if the material is at a high temperature.

If Dr Lisi can calculate the masses of these, he will have made predictions that can be tested experimentally.The particles must be relatively massive, because they would otherwise have been discovered already.

Coarser particles must be isolated and returned for further grinding.

The large particles must be fined using a ball mill.