| 摘要 |
A work bench of the process machine has a first work table and a second work table which is joined with the first work table such that the second work table is capable of moving toward or away from the first work table; a material stopping member of a material stopping device capable of moving between the first and the second work tables, an indicating device comprising a ruler and an indicating portion. The ruler is fixed on the first work table. The indicating portion changes its position along with the position of the material stopping member to point at the scale value of the ruler.
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