In the previous use case examples, the rights granted to a principal were derived from one and only one profile.
在上一个用例中，授权主体的权限仅由一个配置文件驱动。
The paper analyzes machining error and its effect on the tooth profile accuracy according to the principal error, and gives the methods to diminish the error.
本文从方牙丝杠磨削的原理误差入手，分析了方牙丝杠加工的原理性误差及其对工件牙形精度的影响程度，提出了减小加工方牙丝杠原理误差的措施。
The paper analyzes machining error and its effect on the tooth profile accuracy according to the principal error, and gives the methods to diminish the error.
本文从方牙丝杠磨削的原理误差入手，分析了方牙丝杠加工的原理性误差及其对工件牙形精度的影响程度，提出了减小加工方牙丝杠原理误差的措施。
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