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2018-07-20 20:21 来源:中国质量新闻网

  满塘镇:

  辽宁十一选五杀号2017年,中国气象局被世界气象组织认定为世界气象中心,标志着我国气象整体水平达到世界先进水平。资料图:油菜花盛开的浙江省衢州市开化县钱江源乡村美景。

这一关切说明了中国对于全球石油市场的影响力已经变得多么重要。  “总书记特别关心老百姓的生活,比如老百姓还有什么困难、农业发展碰到了什么难题……这让我真切地感受到了共产党人将老百姓放在心间的使命与担当。

  人工智能报道称,云将支持人工智能等新兴技术,并帮助它们适应移动设备等新平台。普京当天发表全国讲话,感谢民众对他给予的支持,并承诺将兑现竞选承诺。

  △3月5日,习近平参加内蒙古代表团审议(谢环驰摄)  关怀“小乡村”里的“大民生”  “我们新修了13公里的水泥路,全村2700口人全部吃上了自来水,还建了文化广场、卫生室、超市、秧歌队、舞龙舞狮队,特别是您倡导推进厕所革命,我们也立即行动,给上厕所不便的村民们修起3个公共厕所……”  3月5日,习近平来到他所在的内蒙古代表团参加审议。服用最高剂量的男性在28天时间里每天服用一次,其黄体生成素、促卵泡素和睾酮的水平都大幅下降。

他们的存在让我们其他人感觉好一点。

    更多场所将实现免费开放  意见提出,加强旅游惠民便民服务,推动博物馆、纪念馆、全国爱国主义教育示范基地、美术馆、公共图书馆、文化馆、科技馆等免费开放。

  新型GE9X发动机安装在其左翼下方,使另外三个发动机相形见绌。报道称,免税还适用于欧盟、阿根廷、巴西、澳大利亚、加拿大和墨西哥,并将持续至4月底。

  你在这里赚了钱,还很愉快。

  国务院台湾事务办公室与中共中央台湾工作办公室、国家互联网信息办公室与中央网络安全和信息化委员会办公室,一个机构两块牌子,列入中共中央直属机构序列。但是这种重金属能在人体内存在许多年。

  新的研究正在测试这种化合物在对6至12岁唐氏综合征患儿和一小部分脆性X染色体综合征患儿的治疗中能够起到的作用。

  河南快三中奖规则研究发现,自行车选手骨骼对矿物质的高度重新吸收不利于骨骼生长发育,年轻人参与竞技自行车项目可能会影响未来骨骼的健康。

  3月26日,该案二审将在浙江丽水市中院开庭审理。但是,石油行业担心,随着中国的原油进口量已经超过了满足其迅速增长的炼油厂网络需求的程度,全球原油市场这仅存的亮点之一或许不会持久。

  河南11选5软件 重庆快乐十分人工计划 神奇11选5是哪个省

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Text:AAAPrint
Sci-tech

China-made C919 no challenge to Boeing, Airbus dominance

1
2018-07-20 10:01Xinhua Editor: Gu Liping ECNS App Download
泳坛夺金481走势图 在Nectome的25位潜在客户中,就有硅谷著名YCombinator创业孵化器的创始人、Nectome公司的投资者奥特曼,后者付费预订“备份大脑”服务的消息一度被某些媒体曲解为他“很快要接受安乐死、为科学献身”,而该爆炸性新闻反过来又把Nectome公司和“备份大脑”服务推上前台。

A view of the cockpit of C919, China's first domestically produced large passenger plane. The plane's maiden flight will take off from Shanghai Pudong International Airport. (Photo/Xinhua)

The aircraft is developed by the Commercial Aircraft Corporation of China (COMAC). Its main rivals will include Airbus 320 and Boeing 737. (Photo/Xinhua)

While the much-awaited first Chinese-built passenger jet C919 is ready to make its maiden flight Friday, it may take much longer for the newcomer to take off in the aviation market.

Shaking the dominance of aviation giants Boeing and Airbus in the near future is unrealistic, observers say, but the Chinese jetliner could be a strong option for global carriers in decades to come.

Scheduled to depart from Shanghai Pudong International Airport on May 5, the C919, with 158 seats and a standard range of 4,075 kilometers, is expected to compete with the updated Airbus 320 and Boeing's new generation 737.

A total of 23 foreign and domestic customers, including China's national carrier Air China and leasing company GE Capital Aviation Service, have placed orders for 570 aircraft, according to the Commercial Aircraft Corporation of China (COMAC).

But this is only the very first step. Even in China's domestic market, COMAC has a long way to go to turn technical success into business success.

Currently, Chinese airlines seem to be more keen to spend money on wide-body aircraft to enhance their global routes with rising enthusiasm for overseas travel. Those jets are still the exclusive province of Boeing and Airbus.

China Eastern Airlines signed contracts in 2016 to buy 20 A350-900 aircraft from Airbus and 15 B787-9 aircraft from Boeing to be delivered between 2018 and 2022.

China Southern Airlines announced in April that it will buy 20 A350-900 with a total catalog price of nearly 6 billion U.S. dollars.

Boeing and Airbus are very mature aircraft manufacturers, and COMAC should seek further cooperation with them to learn from their experiences, according to aviation analysts.

But looking ahead, single-aisle planes like C919 will be the market mainstream and COMAC should do well in the Chinese market, one of the most competitive.

Boeing predicted last year that China will become the world's top aviation market within 20 years, projecting a demand for 6,810 new aircraft in the next two decades with a total value of 1 trillion U.S. dollars.

China will need 5,110 new single-aisle airplanes through 2035, accounting for 75 percent of the total new deliveries, according to Boeing.

The C919 will be a strong competitor in this field being economical and comfortable, according to a research note from Guosen Securities.

If the maiden flight is successful, COMAC will seek airworthiness certificates from the Civil Aviation Administration of China and foreign aviation safety regulators before making its first deliveries.

Also, to pave way for C919 to enter foreign markets, the airworthiness certification of the jet will be a part of bilateral air safety agreement talks between China and the EU.

China has invested heavily in commercial passenger jet manufacturing. In 2007, plans to develop a domestic large passenger jet were approved by the State Council. In November 2015, the first C919 jet rolled off the assembly line.

The ARJ21, the country's first regional aircraft also produced by COMAC, began commercial operations in June 2016 following its maiden flight in 2008.

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