The menu items merge in the same way for both methods, but the merge is activated differently, as discussed in the "Manual Merging" and "Automatic Merging" sections later in this topic.

两种方法的菜单项合并方式相同，但合并的激活方式不同，本主题后面的“手动合并”和“自动合并”部分分别论述了这一点。

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Automatic control here should allow for smooth merging without the usual uncertainties and potential for accidents.

此处的自动控制应该允许平滑合并，没有通常的不确定性和事故的可能性。

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