在输入操作中采用人机会话和菜单技术。

Its input system adopts the menu and interactive operation.

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运用菜单技术从图形库中选择所需的基本图形单元，拼凑成车站信号平面图。

A number of basic figure cells are chose from the graphic warehouse through the use of menu technique and scrabble up a whole of the graph of the station signal.

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本课题也充分考虑了操作的灵活性，在前后台的设计上使用了较为流行的层叠菜单技术。

This topic fully had also considered the operation flexibility, used a more popular level in the front backstage design to fold the menu technology.

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