伊人久久大香线蕉综合AV_亚洲好穴_WWW激情内射在线看_亚洲色网址_欧美日韩成人一区_国产吃奶摸下激烈视频无遮挡

Welcome to Aigre?

more>>Industry Overview

News

Steady Progress of the Sichuan-Tibet Railway Project
addtime:2020-05-14click:338

1.jpg


On April 16, the first seamless welding of long steel rails for the Lhasa-Nyingchi section of the Sichuan-Tibet Railway was successfully completed. The picture shows the welding site.


On February 18, staff from the Surveying and Mapping Institute of China Railway Eryuan Engineering Group Co., Ltd. conducted surveys for the Sichuan-Tibet Railway at Zheduo Mountain in Kangding, Sichuan.


5.jpg

On April 23, the first trainload of long steel rails since the resumption of work this year arrived at the Xierong Laying and Erecting Base for the Lhasa-Nyingchi Railway.


6.jpg

On May 9, concrete temperature measurement was being conducted at the beam production site of the Lang County Beam Production Yard of the Lhasa-Nyingchi Railway by China Railway 11th Bureau.

Recently, all 47 tunnels on the Lhasa-Nyingchi section of the Sichuan-Tibet Railway have been completed, laying a solid foundation for the opening and operation of this section. The builders of the Sichuan-Tibet Railway have overcome difficulties and continued to tackle challenges, making steady progress on the project. Another "heavenly road" on the plateau is gradually turning from a plan into a reality.


主站蜘蛛池模板: 欧美日韩在线视频不卡一区二区三区 | 日韩精品无码一本二本三本色 | 中文AV伊人AV无码AV狼人 | 久久中文字幕av | 欧美第五页| 亚洲欧美日韩精品久久久 | 亚洲欧美日本精品 | 欧美成人精品a片免费区网站 | 亚洲欧美激情小说另类 | 西西大胆午夜人体视频 | 国产一卡2卡3卡4卡网站免费 | 99精品久久久中文字幕 | 日韩淫视频 | 中文字幕乱妇无码AV在线 | 日日躁夜夜躁狠狠躁超碰97 | 大陆av在线 | 国产一区二区福利 | 大地资源在线观看免费高清官网 | 亚洲乱码国产乱码精品精的特点 | 韩日一级 | 远方的山楂树免费观看视频48集 | 中文字日产幕码三区的做法大全 | 国精产品999一区二区三区有限 | 久久中文字幕AV不卡一区二区 | 国产91视频网 | 久久午夜国产精品www护士让 | 污污在线观看 | 亚洲美女精品视频 | 1024国产在线观看 | 欧美亚洲日韩不卡在线在线观看 | 91av手机在线?看 | 欧美一区2区三区3区公司 | 中文日产幕无线码一区2023 | 亚洲日韩欧美一区二区三区 | 疯狂做受XXXⅩ高潮视频免费 | 久久久精品无码中文天美 | 毛片网站在线观看 | 特级片在线免费观看 | 熟妇人妻无码中文字幕老熟妇 | 最新国产区| 国产中文久久 |