| 摘要 |
A manufacturing method of a testing master block characterized in comprising a first step of cutting out a hollow cylindrical block body having at least a top surface and side surfaces from a single piece of quartz glass or single crystal quartz; a second step of forming mounting holes at predetermined positions of the top surface and side surfaces of the block body formed at the first step; and a third step of fastening reference members to which a front end of a probe of a measuring apparatus may be brought into contact by insertion into the mounting holes after the second step.
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