日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Society

What they say

By LUO WANGSHU | China Daily | Updated: 2025-05-30 09:30
Share
Share - WeChat

Editor's Note: The State Council Information Office held a group interview on Thursday to discuss stepping up efforts to boost China's transportation strength as the nation strives to become a pioneer in the industry.

Permafrost formed over 10,000 years ago, but due to the warming and humidification of the Qinghai-Tibet Plateau, it's gradually turning into something like "sesame paste". Building roads on this kind of soft, unstable ground is a huge challenge. My first approach was to mix cement into the "sesame paste" to make it solid. The second was to add crushed stone, a method we call dynamic compaction and replacement — this helps the soft soil support loads. The third method involves using pile foundations to go through the soft layer so that the load rests directly on the deeper, permanent permafrost.

Tian Bo, deputy director at the basic research and innovation center of the Research Institute of Highways, Ministry of Transport

1 2 3 4 5 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 色婷婷综合久久久中字幕精品久久 | 国产视频网 | 夜夜夜噜噜噜 | 久久精品国产一区二区三区不卡 | 亚洲在线影院 | 色综合天天色 | 四虎影院最新网站 | 九九视频在线观看 | 99久久免费中文字幕精品 | 在线免费日韩 | 欧美成人激情视频 | 亚洲欧美国产另类视频 | 成人精品在线观看 | 亚洲精品久久久久中文字幕二区 | 久久aⅴ乱码一区二区三区 日韩精品一区二区在线观看 | 久久精品性视频 | 两性欧美 | 亚洲国产精品视频 | 午夜大片 | 色综合综合在线 | 国产精品国产三级国产a | 国产精品福利在线观看免费不卡 | 亚洲成人二区 | 很黄很暴力深夜爽爽无遮挡 | 毛片特级| 艹逼网| 成人在线免费视频播放 | 亚洲国产综合精品中文第一区 | 一区二区三区四区在线 | 尤物国产 | 久草五月天| 欧美日韩视频在线第一区 | 天天干网 | 中文久久 | 国产喷水| 亚洲精品一区二区三区福利 | 秋霞av电影 | 黄在线免费观看 | 天天操天天干天天 | 国产网址在线 | 国产精品欧美一区二区三区 |