BBabbr.滚珠轴承(=ball bearing)abbr.升压电池组(=booster battery)abbr.预算局(=Budget Bureau)abbr.蓝皮书(=blue book)
BBDC Before Bottom Dead Center在下止点前
BB isoenzyme of creatine kinase脑型肌酸激酶
BBER Background Block Error Rate景块误码率
BBER Background Block Error Ratio背景误块比
Bber sheathed rubber insulated cable韧性橡胶护套绝缘电缆
BBG-I ISDN Basic Business Group.基本业务组。
BBE Better than Best-Effort service优于尽力型业务
Bbar Plane Strain Quadrilateral Element一种用于平面应变的单元