SSBn.单边带(空间科学局)SSabbr.卫星系统（=Satellite System）abbr.闪烁谱仪（=scintillation spectrometer）abbr.固定螺钉（=set screw）SSDU Session Service Data Unit会晤业务数据单元SSBM Single Side Band Modulator单边带调制器SSN-Social security number.我们没有，不填。SSMF Standard Single Mode Fiber标准单模光纤SS Steel Shots Size Distribution钢丸粒度分布SSC distribution characteristics含沙量分布特征SS statutory ceiling on pollution污染的法定最高限度SSCP Self stressing concrete pipe自应力管ssb suppressed carrier modulation抑制载波式单边带调制SSCP System Service Control Point系统服务控制点