| 摘要 |
The apparatus measures the line-up level of poles of electronic gun. It has a group of poles (G) having at least one pole, with beam penetrating hole (ga), which is inserted and fixed to a pole sustaining rod (1) having a penetrating hole (1b), a measuring rod (5) coupled with the beam penetrating hole (ga) of the group of poles (G) and the penetrating hole (1b) of the pole sustaining rod (1), and a projector (6) for projecting beam to the measuring rod (5) through the beam penetrating hole (Gb) and a center hole (1a) of the pole sustaining rod (1).
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