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.