វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
small
medium
large
Pyrochlore
ENGLISH MEANING
noun
1.
A
niobate
of
calcium
,
cerium
, and
other
bases
,
occurring
usually
in
octahedrons
of a
yellowish
or
brownish
color
and
resinous
luster
; -- so
called
from
its
becoming
grass-green
on
being
subjected
to
heat
under
the
blowpipe
.