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: 久久一区二区三区四区 | 国产瑟瑟视频 | 国产性夜夜性夜夜爽91 | 波多野结衣全部系列在线观看 | 日本特黄aa一大片 | 色婷婷色综合激情国产日韩 | 色综合久久婷婷天天 | 双性精h调教灌尿打屁股的文案 | 精品国产18久久久久久二百 | 嫩草91 | 一区二区三区免费视频 www | 91精品一区二区三区久久久久久 | 久久久欧美综合久久久久 | a欧美| 999毛片免费观看 | 成人综合在线观看 | 久久久亚洲伊人色综合网站 | 色婷婷综合缴情综六月 | 91xxx在线观看 | 日韩精品一二三区 | 日韩城人免费 | 国产成人精品区一区二区不卡 | 国产视频高清在线 | 99国产精品久久久久久久成人热 | 国产精品爱久久久久久久 | 黄页网站免费高清在线观看 | 欧美一区二区三区中文字幕 | 午夜影视在线观看免费完整高清大全 | 最新国产视频 | 国外成人直播 | 欧美一区免费 | 国产一区在线免费观看 | 波多野结衣在线观看一区 | 国产精品欧美精品 | 国产精品久久久久无码人妻 | 小明成人免费视频 | 91精品国产综合久久福利软件 | 91精品久久久久久久久久 | 91精品久久久久久久久网影视 | 国产肝交视频在线观看 | 免费观看视频网站 |