帧首定界符

start frame delimiter (SFD)

frame / classifier for paintings etc / Taiwan pr. [zheng4]

head / chief / first (occasion, thing etc) / classifier for poems, songs etc

to set / to fix / to determine / to decide / to order

demarcation / boundary / delimited / bound (math.)

(bound form) boundary; border / (bound form) realm

delimiter (computing)

surname Fu

mark / sign / talisman / to seal / to correspond to / tally / symbol / written charm / to coincide