Aim at the problem of the pressure small, easily test error of adoption shunting line test residual press, develop a new track circuit shunt-residual press fix tester.
针对目前采用分路线测试残压产生压力小，易造成测试误差的问题，研制开发了一种新型轨道电路分路残压定压测试器。
The problem of collecting and delivery shunting of non-through wagon flow on the actinoid private line belongs to a kind of the combinatorial optimization problems.
放射形专用线非直达车流取送车问题属于一类组合优化问题，影响因素较多。
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