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ballas
释义
WordReference Random House Unabridged Dictionary of American English © 2024
bal•las
(bal
′
əs),
USA pronunciation
n.
(
used with a sing. v.
)
[
Mineral.
]
Mineralogy
a spherical aggregate of small diamond crystals used for drilling and for various industrial purposes.
apparently variant of
balas
in phrase
balas ruby
spinel ruby,
balas
being taken to mean "spinel''
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acarnanian
acaroid
acaroid resin
acarologist
acarology
acarophobia
acarpelous
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acarus
acas
acatalectic
acatalepsy
acaudal
acaulescence
acaulescent
acausal
acausality
acc.
acc
accad
accadian
accardo
accd
accede
accedence
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更新时间:2026/10/24 3:45:58