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一种大齿轮渐开线样板

Release Time:2026-03-13  Hits:

First Author: 凌四营

Disigner of the Invention: 娄志峰,王立鼎,王晓东,李军,贾颖

Institution: 机械工程学院

Authorization Date: 2018-10-26

Authorization Number: ZL201610847011.2

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