boart
英 ['bəʊt]
美 ['bəʊt]
词性
名词
基本解释
n.=bort
网络释义
1. 钻石的下部产状，组织混杂， 常见于岩心。2. 刺入矿物中、弯曲而没有渐近准线的钻井钻头。
例证
1. The boart is a lower quality diamond compared to gem-quality diamonds.
(与宝石级钻石相比，下部产状的钻石质量较低。)
2. The drilling bit is designed to handle tough rock formations, including boart.
(钻井钻头的设计可以处理坚硬的岩石，包括下部产状。)
(与宝石级钻石相比，下部产状的钻石质量较低。)
2. The drilling bit is designed to handle tough rock formations, including boart.
(钻井钻头的设计可以处理坚硬的岩石，包括下部产状。)