英文缩写

S/A

s/a single axle 单轴

S/A Situational Awareness 态势感知能力

S/A Surface-Air 地对空

S/A Special Agent n. 特工

S/A Spectrum Analyzer 谱线分析器

S/A Sub-Assembly 部件装配

S/A System Administrator 系统管理员

S/A Semiactive adj. 半活动的(半活性的)

S/A Safe/Arm 安全/手臂

S/A Supply Air (air conditioning) 送风(空调)

S/A Ship Alteration 船变更

S/A Services/Agencies 服务/机构

S/A Semi-Annual (finance) 本次(金融)

S/A Selective Availability (GPS satellite mode) 选择性的可用性(GPS卫星模式)

S/A Service/Agency 代理服务

S/A Sand-to-Aggregate ratio (concrete) Sand-to-Aggregate比率(混凝土)

S/A Sensor/ Actuator 传感器/驱动器

S/A same as above 同上