时间:2018-12-18 作者:英语课 分类:2018CRI中国国际广播电台


英语课

 


Researchers say that China's domestically-developed Beidou Navigation Satellite System brings the country closer to achieving its goal of building a satellite network with global coverage 1.


The comments were made at the 9th China Satellite Navigation Conference, which kicked off on Wednesday in the northeast Chinese city of Harbin.


Experts from countries including China, the United States, and Russia attended the three-day event to exchange ideas on topics such as satellite navigation applications and location services.


Ran Chengqi, the director of China's Satellite Navigation System Management Office, says the Beidou system has been operating steadily 2 since it began offering services in December 2012.


"It's been five and a half years since Beidou-2 went into operation. The system has been operating stably with no break-offs occurring. The positioning accuracy has been raised from ten meters to six meters. Two more Beidou-2 satellites will be launched in the next two years, in order to pursue further progress, while ensuring stable performance," says Ran.


Compared to Beidou-2, the third generation Beidou-3 satellites can broadcast messages of better quality, since new functions such as a satellite crosslink system and global search and rescue capability 3 have been added.


Eight Beidou-3 satellites have been successfully launched over the past six months, and all of them are operating well in orbit.


Experts say that Beidou-3 is closer to achieve the goal of building a network of 35 satellites with global coverage by the end of 2020.


That network will provide services for global users, with the priority of serving the Belt and Road countries and regions.


"The Beidou system has helped reduce the rate of major road traffic accidents and injuries by more than half from that in 2012. The time needed by police to arrive at accident scenes has also been shortened by nearly 20%, while the time for reporting major emergencies is shortened to within one hour. Over 40,000 fishing vessels 4 have been equipped with the Beidou system, helping 5 rescue more than 10,000 fishermen and fisherwomen," says Ran.


Wang Li, the chairman of the China Satellite Navigation System Committee, says Beidou is aiming to become one of the world's leading satellite navigation systems.


"First, the system should provide top-notch services, featuring high accuracy, good stability, and strong reliability 6, so that customers will be satisfied. Secondly 7, it should be indigenous 8, meaning it must be independently developed and innovated 9 in China, in order to form a home-grown industry. Third, it should be integrated with the world, meaning it must be in line with international standards, and we must also conduct international cooperation and provide services to the international markets," says Wang.


Earlier last November, China and the United States signed a joint 10 statement on civil signal compatibility and interoperability between Beidou and the Global Positioning System (GPS).


David Turner, the Deputy Director of the Office of Space and Advanced Technology under the U.S. Department of State, says at the conference that the move will further promote the development of the Global Navigation Satellite System, the GNSS.


"U.S. policy encourages worldwide cooperation with other GNSS system providers, with cooperation focused on compatibility, interoperability, and transparency in the provision of civilian 11 services. We strongly support the continued work on cooperation among our respective systems that takes place under the International Committee on GNSS, and we are very pleased that this work is benefiting all users of GNSS worldwide," says Turner.


The Global Navigation Satellite System includes China's Beidou, the U.S. based GPS, Russia's Glonass, and Europe's Galileo.


The 9th China Satellite Navigation Conference, with the theme "Location, Time and Augmentation", runs from May 23rd to 25th.



1 coverage
n.报导,保险范围,保险额,范围,覆盖
  • There's little coverage of foreign news in the newspaper.报纸上几乎没有国外新闻报道。
  • This is an insurance policy with extensive coverage.这是一项承保范围广泛的保险。
2 steadily
adv.稳定地;不变地;持续地
  • The scope of man's use of natural resources will steadily grow.人类利用自然资源的广度将日益扩大。
  • Our educational reform was steadily led onto the correct path.我们的教学改革慢慢上轨道了。
3 capability
n.能力;才能;(pl)可发展的能力或特性等
  • She has the capability to become a very fine actress.她有潜力成为杰出演员。
  • Organizing a whole department is beyond his capability.组织整个部门是他能力以外的事。
4 vessels
n.血管( vessel的名词复数 );船;容器;(具有特殊品质或接受特殊品质的)人
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
5 helping
n.食物的一份&adj.帮助人的,辅助的
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
6 reliability
n.可靠性,确实性
  • We mustn't presume too much upon the reliability of such sources.我们不应过分指望这类消息来源的可靠性。
  • I can assure you of the reliability of the information.我向你保证这消息可靠。
7 secondly
adv.第二,其次
  • Secondly,use your own head and present your point of view.第二,动脑筋提出自己的见解。
  • Secondly it is necessary to define the applied load.其次,需要确定所作用的载荷。
8 indigenous
adj.土产的,土生土长的,本地的
  • Each country has its own indigenous cultural tradition.每个国家都有自己本土的文化传统。
  • Indians were the indigenous inhabitants of America.印第安人是美洲的土著居民。
9 innovated
v.改革,创新( innovate的过去式和过去分词 );引入(新事物、思想或方法),
  • He innovated a plan for increased efficiency. 他引进提高效率的(新)方案。 来自辞典例句
  • We are using innovated metal detector which is imported from the U.K. 本工厂有先进的生产设备,拥有从英国进口的金属探测机。 来自互联网
10 joint
adj.联合的,共同的;n.关节,接合处;v.连接,贴合
  • I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤,肩膀脫臼了。
  • We wrote a letter in joint names.我们联名写了封信。
11 civilian
adj.平民的,民用的,民众的
  • There is no reliable information about civilian casualties.关于平民的伤亡还没有确凿的信息。
  • He resigned his commission to take up a civilian job.他辞去军职而从事平民工作。
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aahper
Acer miaoshanicum
almog
Alternative facts
Amiyu
amphiapomict
anchoring root
annualising
assumed azimuth
aussi
bathygenetic area
bi-implication form
body disc
bogard
Botrydial
Brock's disease
Brownites
Business Corporation Act
climb into a lifeboat
coffin nails
coincidence gate signal
coleopalorus foveicollis
command chain
complete set of invariants
computer organization
constant temperature and humidity system
cubical graph
cycle-efficiency
deary me!
debenture coupon
degeneratory
department for education and skills (dfes)
diaphragm valve
digitalis folia
discursive construction
dolichurus
dunlins
electrofishers
epilayers
favoured
feel one's way
filter pass-band
gentleman-at-arms
glanders
guide yoke
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high-pass filtering
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hot pressed bronze compact
human dimensions
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limited examination
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push to the wall
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S-video connector
shan tzu wu (ha ni tsu)
sic-like
sine integrals
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subcontinuous typhoid
telalginite
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three-quarter tracked
trusteeship
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university of waterloo
upsize
vertical data processing
vitamin A-2
walk-abouts
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what's the time, Mr Wolf
wide adjustable speed DC servomotor