Professional technician or engineer workers man and woman stay in front of electric train
Professional technician or train factory worker hold light stick to check and fix the problem
Two engineer or technician workers man and woman discuss together using drawing paper
Close up professional engineer or technician workers man and woman concentrate to look the data
Professional engineer or factory technician worker man and woman shake hands for the success
Professional technician or engineer try to check and fix the problem part of electric train and work
Professional engineer or technician worker woman check and discuss the problem of parts under train
Close up engineer or technician worker woman hold tablet with green screen and look at it
Professional engineer or technician worker woman check and discuss the problem of parts under trai
Technician or engineer worker point to the area of the problem to fix for electric train and discuss
Profession engineer or technician worker use walkie talkie to contact with co-worker or team staff
Portrait of engineer or technician worker point ot lower parts of electric train and look camera
Close up professional engineer or factory technician worker man and woman shake hands for success
Technician or engineer worker man hold walkie talkie to contact with team member or staff
Professional technician or engineer worker hold light stick to check and fix the problem of parts
Two professional engineer or technician workers man and woman discuss with drawing paper
Factory workers man and woman discuss about work and stand in workplace with wheel
Back of technician or factory worker woman stand and show action to the driver in electric train
Front view of professional technician or train factory worker hold light stick to check and fix
Professional engineer or technician worker man hold walkie talkie and archboard stand in front
Wide shot of two professional engineer or technician workers man and woman discuss with drawing
Professional technician or engineer worker woman hold tablet and use walkie talkie to point to left
Professional engineer or technician stand in front of electric train and write the data on paper
Professional engineer or technician stand in front of electric train and write the data on paper
Vertical image of professional engineer or technician worker woman stand with arm-crossed in front
Professional engineer or technician man check and maintenance lower parts of electric train
Professional engineer or technician workers man and woman hold white drawing paper
Close up hands of technician or engineer worker record the data about the checking and maintenance
Professional engineer or technician worker woman check and discuss the problem of parts under train
Lower view of train factory or professional technician worker check and fix the problem of train
