line of centers
... 连杆曲线coupler-curve 连心线line of centers 链chain ...
[机] Line of centres
... 轴交角shaft angle 连心线line of centres 齿数比gear ratio ...
bearing center line
ECG CABLE
CONNECT TO SEGMENTS
通过平面内不重合的两个圆的圆心的直线叫做这两个圆的连心线。
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