The alignment happens 18.6 days sooner than if the nodes were not moving, creating the shorter eclipse year (about 346.6 days).
这种变动正好比未移动时的交点快18.6天，形成较短的食年（约346.6天）。
The alignment happens 18.6 days sooner than if the nodes were not moving, creating the shorter eclipse year (about 346.6 days).
这种变动正好比未移动时的交点快18.6天，形成较短的食年（约346.6天）。
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