但是有一个非常显著的右歪斜。
中央行（中间）一般位于框的中间，指示了有非常小的歪斜度。
The central line (median) is almost centrally located within the box indicating a very small degree of skew.
有对数轮廓的轴承对歪斜和角误差不太敏感。
Bearings with logarithmic profiles are less susceptible to shaft deflection and misalignment.
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