boron carbide的用法和樣例：
例句
- The development and research status of boron carbides for the Bulletproof Ceramic were summarized in this article.
本文綜述了碳化硼抗彈陶瓷材料的發展和研究現狀。 - Green colour,its hardness is only second to diamond and boron carbide.its hardness and brittleness are higher than C.
綠色，硬度僅次於碳化硼和金剛石，比黑碳化硅硬度和脆性略高。
