Terms for subject Space containing 三A级

Chinese	English
三级业务	grade-3 service (CCSDS 建议中质量最差的数据传输业务)
三级免疫功能	tertiary immune function
ABC 三级分类法	ABC classification (将备件按其重要性划分为A、B、C三类)
三级地址	third-level address
三级定址	three-level addressing
三级开关	three step switch
三级故障	third-class failure
三级组装	third-level of packaging
三级维修	third-level maintenance
三能级激光器	three level laser
整星三级故障	third-class failure of satellite
高性能第三级	high performance third stage (火箭)