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boron ['bɔːrɒn, -ɑːn] rzecz. | |
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posp. |
Bor n |
chem. |
Bor n (Borium); Borium n (Borium) |
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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] rzecz. | |
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ochr.środ. |
Bor n |
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Angielski tezaurus |
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Boron ['bɔːrɒn, -ɑːn] skr. | |
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skr., szkoc.ang. |
B |