图上可直接展示施工进度网络计划的各时间参数，特别是各工作的总时差和自由时差。
The each time parameter of construction schedule network planning in the graph may be exposed immediately, the total float and the free float of each work especially.
工作的总时差是工作的最主要时间参数之一，是网络图中关键工作和关键线路的判别依据。
The total float time is one of the important time parameters for a working task, and also is the basis for ascertaining critical work and critical paths in network planning.
工作总时差是工作最主要的基本时间参数之一，其大小是网络图中关键工作和关键线路的判别依据。
The basic principle of total time difference is analyzed, and a new thought of weight earned value is put forward.
工作总时差是工作最主要的基本时间参数之一，其大小是网络图中关键工作和关键线路的判别依据。
The basic principle of total time difference is analyzed, and a new thought of weight earned value is put forward.
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