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Shui Qingxia appointed as head coach of Chinese women's football team******
SHANGHAI, Nov. 18 (Xinhua) -- The Chinese Football Association (CFA) has appointed Shui Qingxia as the head coach of the Chinese national women's football team, CFA announced on its official website on Thursday.。
Shui served as the head coach of Shanghai women's football team before the appointment. According to the announcement, the CFA made the decision based on comprehensive consideration and careful study.。
Born in Jiangsu Province in 1966, Shui was a former member of the Shanghai women's football team and the national women's football team. As a midfielder, Shui was good at free kick in the team. In November 1998, she joined Suzuyo Shimizu F.C. of Japan and scored 11 goals in the league.。
After retiring in 2001, Shui coached the national women's football youth team and Shanghai women's football team. She was once rated as the best coach of the women's Super League in China. Enditem。
Foreign envoys to WTO laud China's contribution to multilateral trading system******
GENEVA, Oct. 21 (Xinhua) -- Multiple countries praised China's trading policy and its active role in supporting a multilateral trading system on Wednesday as the World Trade Organization (WTO) started the eighth trade policy review of China in Geneva, Switzerland.
Russia commends China for its important leadership role in the WTO. "We highly appreciate and share Beijing's continuous support for multilateral trading system as embodied in the WTO," the Russian delegation to WTO said in a statement.
Russia strongly supports China's efforts in combatting protectionism and emerging forms of discrimination, especially in the form of unilateral measures, the statement added.
The Saudi delegation said that China plays a leading role in the rules-based multilateral trading system and regional trade agreements (RTAs) to continue its development and growth.
China is a politically and economically significant player in global trade, said the Philippine delegation, adding that despite the COVID-19-induced economic slowdown, the Chinese economy continues to be a major driver of global growth.
The delegation of Vietnam to the WTO acknowledged China's active contribution to the WTO and the world trade through its active and consistent participation in various ongoing processes in the organization, including the discussions of WTO reform, negotiations on fisheries subsidies, among others.
Not only has China's development strategy benefitted Chinese people, but its open and unique approach of pursuing "shared prosperity" and "trade for peace" through regional connectivity has opened new channels for trade and investment, the Pakistani delegation said in a statement.
This year marks the 20th anniversary of China's accession to the WTO.
Over the past two decades, China has fully fulfilled its accession commitments, actively participated in the work of the WTO, and made great contributions to upholding the multilateral trading system, China's Ministry of Commerce said on Tuesday. Enditem
在发射升空三十天后，詹姆斯·韦伯望远镜（James Webb Telescope）于北美时间1月24日抵达距离地球150万公里的目的地——第二拉格朗日点。该点始终与地球和太阳保持在几乎同一直线上，使得仪器运转保持相对稳定。现在，地球上的控制人员将会在接下来的几个月对望远镜进行调节，为科学研究做准备。
James Webb telescope parked in observing position
Thirty days after it was launched, the James Webb telescope has arrived at the position in space where it will observe the Universe.
在发射升空三十天后，詹姆斯·韦伯望远镜（James Webb Telescope）已经在太空中抵达其将要观测宇宙的位置。
The Lagrange Point 2, as it's known, is a million miles (1.5 million km) from Earth on its nightside.
这个被称为拉格朗日L2点（Lagrange Point 2）的位置，在地球阴面之外100万英里（150万公里）处。
Webb was finally nudged into an orbit around this location thanks to a short, five-minute thruster burn.
Controllers back on Earth will now spend the coming months tuning the telescope to get it ready for science.
Key tasks include switching on the observatory's four instruments, and also focusing its mirrors - in particular, its 6.5m-wide segmented primary reflector.
"There's a pretty intensive effort to take all of those 18 segments from their current state and get them to act as one big mirror, and also to get the secondary mirror into its optimised condition," explained Charlie Atkinson, the chief engineer on Webb at Northrop Grumman, the American aerospace company that co-led the telescope's development with the US space agency (Nasa).
“将全部18个部分从现在的状态调节成一面大主镜，还要将副镜调到最佳状态，当中有颇为繁重的工作要做，”诺斯洛普·格鲁曼公司（Northrop Grumman）的韦伯望远镜首席工程师查理·阿特金森（Charlie Atkinson）解释说。这家美国航天企业与美国太空总署（NASA）联合主导这个望远镜的研发。
Webb, billed as the successor to the famous Hubble Space Telescope, was launched on 25 December by an Ariane-5 rocket from French Guiana.
韦伯被标榜为著名的哈勃太空望远镜（Hubble Space Telescope）继任者。它在12月25日在法属圭亚那用一枚亚利安5号运载火箭发射升空。
Its overarching goals are to take pictures of the very first stars to shine in the Universe and to probe far-off planets to see if they might be habitable.
Europe's Ariane-5 gave the new observatory a near-perfect trajectory and velocity to get it out to L2. Even so, two course correction burns were necessary, with the third on Monday tipping Webb into its planned parking position.
The Lagrange Point 2 is one of five gravitational "sweet-spots" around the Sun and Earth where satellites can hold their position with few orbital adjustments, thus conserving fuel.
The other advantage is that Webb will not experience at L2 the big swings in temperature and light endured by space telescopes positioned much closer to Earth.
This is vital for the mission. It's designed to view the cosmos in infrared light and must maintain therefore constant super-cold conditions for its hardware.
Infrared light has waves that are just longer than those of visible light. "Seeing" in the infrared will allow the telescope to, for example, look through dust to image stars that would otherwise be obscured.
Webb will now circle L2, keeping the Earth and the Sun in a near-straight line.
"L2 is pseudo-stable," said Jean-Paul Pinaud, who leads the Northrop engineers that keep Webb on track.
"The flight operations team is preparing routine station-keeping burns. They'll be doing those every 20 days or so with the trajectory calculations provided by our flight dynamics team. We'll set them up in a similar way, and then fire the thruster. But the burns will be quite small."
Hidden behind a big sunshield, Webb's optics and instruments will soon cool to about -230C (some sections of the telescope are already there). When that happens, controllers will switch on Webb's Near Infrared Camera (NIRCam) to take a picture of a test star to begin the process of aligning the big mirror.
"We know when we first focus on a star in space, we'll actually see 18 different spots of light because the 18 individual mirror segments won't be aligned," said Nasa instrument systems engineer Begoña Vila.
"But we'll adjust the mirrors to bring all the spots together to make a single star that's not aberrated and good for normal operations. It's a long process. It can take up to three months during commissioning, and we are ready to do that.”
Focusing involves driving small actuators, or motors, on the back of the 18 segments of the primary mirror to harmonise their curvature. The current misalignment, which is measured in millimetres, will be brought down to one measured in nanometres - a factor of a million improvement.
Similar adjustments will be applied to the 74cm-diameter secondary reflector which sits out in front of the primary mirror and is used to bounce light back towards the instruments.
So far, the Webb mission has not put a step wrong. The launch and journey out to L2 passed off without incident.
And even the complex business of unfolding the telescope after it came off the top of the Ariane rocket was made to look like the easiest of rehearsals.
"We were thrilled with the precision and success of all those deployments," said Kyle Hott, the mission systems engineering lead at Northrop.
"It's pretty incredible to think that it was all just a concept on paper decades ago, and now it's actually here, arriving at L2. Morale is high and we're so very excited."