人—车—路的安全问题是典型的安全系统工程问题。
Safety problem of Human-Vehicle-Road system is a typical problem of safety system engineering.
PDM系统的安全性问题是一个复杂的系统工程。
The security of the PDM system is complicated system engineering.
深基坑支护系统方案的优化设计是一个相当复杂的系统工程优化问题。
It is very difficult to optimize the bracing project of deep foundation pit.
深基坑支护系统方案的优化设计是一个相当复杂的系统工程优化问题。
It is very difficult to optimize the bracing project of deep foundation pit.
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