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polycrase
释义
polycrase
polycrase
[
′päl·i‚krās
]
(mineralogy)
(Y,Ca,Ce,U,Th)(Ti,Cb,Ta)
2
O
6
Black mineral composed of titanate, columbate, and tantalate of yttrium-group metals; it is isomorphous with euxenite and occurs in granite pegmatites.
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gpaaa
gpaah
gpaar
gpaas
gpab
gpabf
gpabht
gpac
gpacac
gpacc
gpace
gpacf
gpacg
gpacs
gpact
gpacu
gpacw
g-pad
gpad
gpade
gpadl
gpadp
gpads
gpaecg
gpaedc
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
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更新时间:2026/8/31 8:40:09