Reference values of the serving angles of the racket with different speed and height were provided.
给出以不同初速度和高度发球时球拍角度的参考值。
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Objective: Measuring the secure depths and angles of Yamen acupoint with three-dimensional positioning MRI to provide the reference datas of secure depths and angles for clinic.
The paper shows the clear relationship between the reference planes for the nominal angles of the cutting tool and the planes for the working angles of the cutting tool.