| 释义 |
ang·strom
\ˈaŋztrəm, ˈaiŋ-, -ŋst- sometimes ˈȯŋ-\ noun
or angstrom unit
(-s)
Etymology: after Anders J. Ångström died 1874 Swedish physicist
: either of two units of wavelength:
a. : one ten-billionth of a meter — called also absolute angstrom
b. : the wavelength of the red spectrum line of cadmium divided by 6438.4696 — called also international angstrom |