另外，虚拟结构的所有部件必须在同一个工序。
In addition, all components of the phantom structure have to be linked to the same operation.
到目前为止，该小组已成功创建了虚拟结构，比如用于枪伤所致缺陷的。
So far, the team have created successful virtual constructs, such as for a defect resulting from a gun-shot injury.
推导出求虚拟结构参数公式，编制了程序，并以实例证明了算法的有效性。
The formulae are derived, and the programs are given, the model is proved efficient by an example.
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