单路载频电话终端机
single-channel carrier frequency telephone terminal
代谢终产物
end product of metabolism
大圈终航向
final great circle course
次要终地址
secondary terminal address
磁带终端站
magnetic tape terminal station
MTTS
传送终止字符
end of transmission character
传送终端功能
TTF:Transport Terminal function
TTF Transport Terminal Function