SG

= Sawtooth Generator,锯齿波发生器;

= Scanning Gate, 扫描门；扫描控制门;

= Screen Grid, 帘栅极;

= SubGroup, 分组，子群;

= SuperGroup, 超群;

= Symbol Generator, 符号发生器;

= SynchroGenerator, 自同步发送机，自同步振荡器