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化学 bors
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boron

['bɔːrɒn, -ɑːn] 名词
化学 bors (Borium)
boron A very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder. It occurs principally in borax and is used in hardening steel ['bɔːrɒn, -ɑːn] 名词
环境 bors
 英语 词库
Boron ['bɔːrɒn, -ɑːn] 缩写
缩写, 苏格兰语 B

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