名词定义中文名称：瞬时轴英文名称：instantaneous axis定义：在平行轴或相交轴的齿轮副中，指两齿轮作相对的瞬时回转运动的轴线。在交错轴齿轮副中，指两齿轮作相对的瞬时螺旋运动的轴线。应用学科：机械工程（一级学科）；传动
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瞬时轴线 instantaneous axis
空间瞬时轴 spatial instantaneous axis
直轴瞬变时间常数 direct axis transient time constant
瞬时螺旋轴 [物] instantaneous screw axis ; Instant screw axis
瞬时转动轴 [力] [机] instantaneous axis of rotation ; instant axis of rotation
瞬时自转轴 Die instantane Rotationsachse
瞬时旋转轴线 instantaneous axis of rotation
瞬时旋转轴 [力] instantaneous axis of rotation ; instant axis of rotation ; IAR
瞬时螺旋轴线 instantaneous screw axis
在普通十字轴万向节二次力矩的基础上，推导出环叉式万向节二次力短的瞬时表达式。
On the base of the second couple of the common cross U-jioint. a transient value of the second couple in the ring-fork U-joint is obtained.
而采用瞬时强度比法后，初至曲线的同向轴变得更加光滑，拾取异常点的情况大为减少，从而有效的提高拾取的精度。
When using the instantaneous intensity ratio method, the event of first arrival curve becomes more smooth, and abnormal points have greatly reduced, thus the accuracy of picking is greatly enhanced.
同时对传统正负序分量瞬时计算方法和正负序同步旋转坐标轴定向方法进行了改进。
The thesis also improved the method of the instantaneous power component computation and the synchronous coordinate orientation.
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