阐述了哈大线铁路电力监控系统的概况，介绍了系统的范围、主要功能及设备构成。
The paper clarified the general situation of the power monitor system of Ha - Da railway, introduced the range, main performance and the equipment composition of the system.
本文介绍了南京长江水底隧道概况，针对该水底隧道是供高速铁路使用的沉管隧道的特点，论述了开展前期工作的必要性并提出了前期工作的主要内容。
In view of the speciality of that the underwater tunnel is a settled-tube tunnel used for the high-speed railway, the necessities for developing its earlier-stage works are described and discussed.
项目概况：本线从温福铁路霞浦站引出，接入溪南港作业区，线路长度约37.5公里。
IV. Project survey: The line extends from the Xiapu Station of Wenfu Railway, joining Xi'nan Harbor operation area. Its length is 37.5 kilometers.
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