The results of the research can effectively guide metal magnetic memory testing done on pipelines and its safety evaluation.
文中的研究结果，可以有效指导管道的磁记忆检测及安全评价。
The models for operating speed of Highway Safety Project Evaluation Guide are modified. (4) The principles of formulate speed-limit standards for freeway are proposed.
提出了高速公路限速标准的制定原则，并结合运行速度的计算结果制定出常张高速公路的建议限速标准。
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