术语表

Rays of short wavelengths ranging from 0.06 to 2 Angstrom units, which are emitted by suddenly changing the velocity of a moving electric charge by impact of a cathode ray on a target in a vacuum tube and by the changes in the atoms of the target caused by the impact. Also called Roentgen rays.

A pentose sugar present in small quantities in wort. Relatively unimportant in brewing.