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

Winter Olympics point way to a greener world

By HOU LIQIANG | China Daily | Updated: 2022-03-04 09:22
Share
Share - WeChat
Ice makers operate at the National Speed Skating Oval in Beijing on Feb 8. WANG WEIWEI/FOR CHINA DAILY

Difficulties addressed

Technological breakthroughs were also made in improving the performance of hydrogen-powered vehicles for the Winter Olympics.

Long Fenjie, head of the Hebei Provincial Department of Science and Technology, said at a news conference organized by the Beijing 2022 Media Center on Feb 16, "We had to address difficulties in the fast startup of hydrogen-powered vehicles in low temperatures and ensure that the hydrogen buses in Zhangjiakou could successfully fulfill their tasks of providing transportation for the Games."

Recognizing the importance of hydrogen in China's green, low-carbon transformation, the Outline of the 14th Five-Year Plan (2021-25) for National Economic and Social Development and the Long-Range Objectives Through the Year 2035 lists the gas as one of the forward-looking industries.

Low-carbon technologies used for the Beijing Games also included making ice from carbon dioxide, along with fire- and weather-resistant steel.

Carbon dioxide was used for the first time as a refrigerant to make ice for the skating tracks at the Winter Olympics. The technology was applied at four venues, including the National Speed Skating Oval.

Compared with traditional methods, making ice from carbon dioxide can save electricity use by more than 20 percent, according to the Oval.

The 60-meter-high Shougang Big Air in the Shijingshan district of Beijing, the world's first permanent venue for Big Air events, is built from high-quality steel with a strong resistance to corrosion. This steel can withstand extreme weather conditions, which are becoming more frequent due to global warming.

The venue's main structure can withstand an 8.0-magnitude earthquake. The steel track is strong enough to resist serious corrosion caused by frequent use of snow-melting agents.

Li Ming, deputy general manager of Beijing Shougang Co, said the company used seven types of high-performance steel at the venue to meet the requirements for permanent use, and also to make the venue safe and easy to maintain.

At a news conference on Friday, Wang Jinnan, head of the Chinese Academy of Environmental Planning, said the green, low-carbon practices for the Beijing Winter Olympics set excellent examples for advancing construction of a Beautiful China.

Quoting a recent article from the journal Nature, Wang, also an academician at the Chinese Academy of Engineering, said that despite carbon reduction at the Games being like a drop in the ocean compared with the nation's total emissions, it proves that it is possible to realize carbon neutrality on an even bigger scale.

"This will leave a rich, precious, sustainable Olympic legacy for future generations," he added.

|<< Previous 1 2 3 4 5 6 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: 99这里只有精品6 | a在线观看欧美在线观看 | 国产精品久久久久影院色老大 | 亚洲看片网 | 精品久久久久久亚洲 | 浮力影院草草影院 | 欧美日皮视频 | 青草香蕉精品视频在线观看 | 天堂综合网久久 | 亚洲欧美日韩综合在线 | 91精品久久久久久久久久小网站 | 亚洲欧美日韩在线 | 欧美极品在线观看 | 国产精品久久久久久影视 | 亚洲片在线观看 | 国产精品拍拍拍福利在线观看 | 最近最新中文字幕 | 国产小视频福利 | 激情亚洲| 免费网站看v片在线a | 日韩成人在线观看视频 | 欧美成人h版在线观看 | 日韩h片在线观看 | 国产精选经典三级小泽玛利亚 | 欧美视频国产 | 久久国产精品一区二区 | 国产++欧洲韩国野花视频 | 伊人超碰 | va日本| 色屁屁www影院免费观看软件 | 国产精品一区三区 | 久久一区二区三区免费 | 国产激情91久久精品导航 | 日日a.v拍夜夜添久久免费 | 99在线热播精品免费 | 狠狠撸电影院 | 久久久大片 | 国产99久久亚洲综合精品 | 综合第一页 | 日韩精品一区二区三区中文3d | 911网站大全在线观看 |