1)  Bi-system
Bi 系
2)  Bi-based
Bi系
1.
A novel process of synthesizing the Bi-based 2212 phase high-temperature superconductor precursor composite powder was developed.
介绍了一种制备2212相Bi系超导前驱体粉末的新方法。
3)  Sn-Zn-Bi
Sn-Zn-Bi系
1.
Wettability of Sn-Zn-Bi Based Lead-Free Solder with Rare Earths;
含稀土Sn-Zn-Bi系无铅钎料润湿性能的研究
4)  connection number a+bi
联系数a+bi
1.
Fundamental operation of arithmetic on connection number a+bi and its application in network planning;
联系数a+bi的运算及在网络计划中的应用
5)  Bi2223 tapes
Bi系带材
6)  Bi-Te substrate system
Bi-Te基体系
参考词条
补充资料：系狗当系颈
1.比喻办事当抓住关键。
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