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单词 boron nitride
释义

WordReference Random House Unabridged Dictionary of American English © 2024
boron nitride, [Chem.]
  1. Chemistrya white powder, BN, formed by heating boron in nitrogen. In its ordinary form, it has a structure of stacked layers of hexagonal rings, very similar to that of graphite, and is used as a refractory electrical insulator. Cf. Borazon.

Collins Concise English Dictionary © HarperCollins Publishers::
boron nitride n
  1. a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high temperature lubricant and insulator, and heat shield. Formula: BN
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