yùn zhuān xiàn
nínshìfǒuzàixúnqiú:哈大哈大客运专线哈大 哈大客运专线gèngduōjiéguǒ...
mùlù
yīngwénjièshì
  1. :  Hada passenger transport special-purpose phone line or communications link
xiàngguāncí
gāo tiě yùn zhuān xiàn cháng chūn tiě chē zhàn