TT
abbr. 电汇(=telegraphic transfer)abbr. 炮弹等飞行时间(=time of flight)abbr. 电传打字电报机(=telotype)
abbr.
1. =telegraphic transfer 电汇
2. =teletypewriter
3. =transit time 通过时间
4. =tuberculin tested 做过结核菌试验的