| 单词 | bc |
| 释义 | > as lemmasB.C. B.C. n. Before Christ. B.C. Categories » B.C. n. Bad character; a mark formerly set on a soldier on his expulsion from his regiment for gross misconduct. BC BC n. Diving buoyancy compensator. ΚΠ 1975 Pop. Sci. May 132/3 The BC isn't just for emergencies; you use it constantly to adjust your buoyancy under water. 1993 Discover Diving Apr. 38/3 There were no suits, no BC's, and I was negative buoyant. 2003 S. M. Barsky & T. S. Neuman Investigating Recreational & Commerc. Diving Accidents ix. 150 The diver claimed the cap came off the power inflator and the BC sent him rocketing to the surface. < as lemmas |
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