выделять

I

• The acid evolves hydrogen.

• Materials which give off (or release, or liberate) corrosive products during a temperature rise ...

• The hypothalamus secretes (or puts out) a substance called the cotropin-releasing factor.

II

см. тж. вылавливать сигнал

• Several hundred chemical compounds have been isolated from coal tar.

III

• Let us now rewrite this expression separating out the derivative normal to .

IV

см. различать

V

• The regulatory authority used to set aside a region of the radio spectrum for a service.