S/B

S/B Should Be 应该,应该

S/B Southbound (traffic/transportation) (交通、交通等)南行

s/b stillborn 死产的

S/B Standby 备用

S/B Switch Board 交换台

S/B Sand Blast vt. 喷砂法

S/B Starting Bid (trade) 投标(交易)开始

S/B Signal to Background (ratio) 背景(率)的信号

S/B Seen By (UK medical reporting) 医学报告被(英国)

S/B swing/by 秋千/

S/B Soil/Bentonite 膨润土

s/b stand-by 备用的,辅助的,备用件