Joke Collection Website - Mood Talk - What kind of railway builder is Qinghai-Tibet Railway? What difficulties did he encounter in the process of building the Qinghai-Tibet Railway and how did he overcome them?
What kind of railway builder is Qinghai-Tibet Railway? What difficulties did he encounter in the process of building the Qinghai-Tibet Railway and how did he overcome them?
Frozen soil, cold and lack of oxygen and ecological fragility are three major difficulties. "Replacing roads with bridges" has solved the problem of subgrade stability in permafrost regions on the plateau, and also provided a free migration channel for wild animals such as Tibetan antelopes. Construction workers carry 5 kg oxygen cylinders and work while inhaling oxygen; Adopt environmental protection energy mainly including electric energy, solar energy and wind energy for heating.
- Previous article:Sweet words in love. Girls chat on WeChat when they are in love.
- Next article:Friends circle wishes her daughter a happy birthday.
- Related articles
- What is a Tik Tok garage?
- Feel cheated, talk about being cheated, talk about being sad.
- Do you know any delicious food that is expensive outside and a few dollars at home?
- On Haoran's Poetry Idioms (with Haoran's Poems)
- Heal yourself and say it.
- What poem can describe that seemingly nothing has changed, but the original plot or people have actually changed everything?
- Talking about being busy and tired
- Qiu Mu Dan's poems.
- A word of failure tells my feelings.
- Talk about boys' lovelorn sadness