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Borometer (bore-ah-met-ur)
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Borometer (bore-ah-met-ur), английский
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Borometer (bore-ah-met-ur), английский
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Boron, английский
(chemical symbol b)- element no. 5 of the periodic system. atomic weight 10.82. it is gray in color, ignites at about 1112°f. and burns with a brilliant green flame, but its melting point in a non-oxidizing atmosphere is about 4000°f. boron is used in ste
Bornography, английский
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