齿轮渐开线样板和螺旋线样板是齿轮参数的标准计量器具，分别用于齿轮仪器渐开线、螺旋线参数的校准。
The gear involute master and helix master are measurement standards and usually used to calibrate the involute and helix parameters of gear equipments.
解决了机械和电气相互匹配的实际问题，提出了用阿基米德螺旋线拟合加工渐开线的思路。
Some measures were given to solve the problem of matching the mechanical part and electrical part. At last, a fitting method making use of Archimeder's s…
解决了机械和电气相互匹配的实际问题，提出了用阿基米德螺旋线拟合加工渐开线的思路。
Some measures were given to solve the problem of matching the mechanical part and electrical part. At last, a fitting method making use of Archimeder's s…
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