键图法是一种强有力的系统建模方法。

Bond Graphs are a powerful tool in modelling of mechanical systems.

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键图是一种新的强有力的系统模拟工具。

Bond graph is a new and powerful tool of system simulation.

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如图4所示， 按住Shift 键选择所有的方法。

Shift-select all of the methods shown in Figure 4.

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单击newpage键(图28)。

Click the New page button (Figure 28).

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键合空间理论是系统动力学键合图理论的拓展。

The Bond-space theory is the development of the bond graph theory of system dynamics.

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对连通图的键覆盖进行了研究。

In this paper, the bond cover of a connected graph was studied.

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根据液压元件的键合图模型，建立对应的数学模型。

Then, the mathematical model of common hydraulic element is built.

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一个关系主外键约束图。

A relationship between the main foreign key constraint graph.

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一个关系主外键约束图。

A relationship between the main foreign key constraint graph.

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