荧光屏上的目标回波
Research methods: By studying documentation and taking Datong-Qinhuangdao Heavy-haul railway for example, this paper determines the working scope and rational effective length of the receiving-departure track for heavy load train in technical station.
研究方法:通过文献研究并以大秦线为例,确定重载铁路技术站到发线作业内容及合理的到发线有效长度;
The scope and sequence of the track and field curriculum content through learning outcomes form a new content system. 4.
田径课程内容的范围和序列通过学习结果统合在一起形成新的田径课程内容体系。
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