bc meaning in Chinese

• B.C. ＝ Before Christ 公元前。

• earliest settler（bc-bc）:    最初的移民
• 0s bc:    前0年代
• 1 bc:    前1年

Examples

1. Ab extends by 2mm and bc contracts by 2mm .
   AB伸长2mm，而BC缩短2mm。
2. Soldiers of bad character were branded bc .
   对品质恶劣的军人烙BC型烙印。
3. Glass-making flourished as early as 1350 bc .
   早在公元前一千三百五十年，玻璃制造业已十分发达。
4. The tube abc shown is cantilevered with ab and bc in a horizontal plan .
   所示的管ABC是由位于同一水平面内的AB和BC组成的悬臂。
5. the vertical displacement =1mm is normal to the bars ab and bc and hence does not affect their length.
   竖向位移1mm垂直于AB和BC，故不影响它们的长度。