safetyman

1. 11 Radiography work must be carried out by at lease two (2) persons certified as radiographers, one (1) of which will act as a supervisor, the other will act as the safetyman and assistant.

放射性施工应由至少两名合格的放射线技师进行，一人监督，另一人负责安全和协助。

2. One of two defensive backs;a safetyman.