Yu J Y. Item Response Theory Application (in Chinese). Nanjing: Jiangshu Education Publishing House, 1992

余嘉元。 项目反应理论及其应用。 南京：江苏教育出版社，1992。

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No adapter plate is used with this coupling. J represents distance above reference point Y (top of mount bracket).

用这种连接器就不需要连接垫板。J代表距离参考点y的距离(安装托架顶部)。

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Shi Y. , You L. -K. , Li J. Advances of atlantoaxial joint implant and its biomechanical analysis.

时雨，游路宽，李军寰枢关节置入物的研究进展及生物力学分析。

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It can be x plus some change in x plus j times y plus a change in y.

可以写成 x 加上 x 方向的变化量,再加上 y 加上 y 方向的变化量

耶鲁公开课 - 基础物理课程节选

Initially, its location as a function of time is equal to i times x plus j times y.

初始时刻,它的位移作为时间的函数等于,i ? x + j ? y

耶鲁公开课 - 基础物理课程节选

So i and j are vectors of length one, pointing along x and y.

和 j 是模长为1的矢量,分别指向 x 轴和 y 轴方向

耶鲁公开课 - 基础物理课程节选

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Iwasaki K, Cyong JC, Kitada S, Kitamura H, Ozeki J, Satoh Y, Suzuki T, Sasaki H.

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