JT/T 32.9-1993 Workers in the transportation industry technical grade standard navigation mark aerial survey radio pointing mark operator (English Version)
This standard specifies the levels, knowledge, skills and work examples of radio pointer operators. This standard applies to the training, assessment and use of radio pointer operators.
JT/T 32.9-1993 history
1970JT/T 32.9-1993 Workers in the transportation industry technical grade standard navigation mark aerial survey radio pointing mark operator