coupling mechanism between upper level and low level jet

fiscal system at county level and township level

interaction between upper level and lower level

municipal level and county level

4S shop

a bull in a china shop

a one-hour-photo shop

a slap-bang shop

Acyclic flow shop

adjustable shop

adjusting shop

after front the scene welding shop characteristics experiment

arcade shop premises

assembly shop

Auto 4S shop

auxiliary shop

auxiliary shop control system

back shop

barber’s shop

big shop