English
|
German
|
Russian
|
Czech
English
for English speakers
English
as a second language
Englisch
für Deutschsprachige
английский
для русскоговорящих
angličtina
pro mluvčí češtiny
hydrogen line
English
Meaning
hydrogen line
meaning
What does
hydrogen line
mean?
hydrogen line
noun
—
(
physics
,
astronomy
)
a
spectral
line
of
atomic
hydrogen
having
a
wavelength
of
about
21
cm
;
used
extensively
in
radio
astronomy
Are you looking for...?
hydrogen
|
line
hydrogen lamp
|
hydrogen hydroxide
|
hydrogen acetate
|
hydrogen air
|
hydrogen vehicle
|
hydrogen atom
|
hydrogen attack
|
hydrogen azide
|
hydrogen sulfite
|
hydrogen bomb
|
hydrogen bond
|
hydrogen brazing