Smart Solutions
Beijing expo gives a glimpse of the smart city of future with cutting-edge technology By Xia Yuanyuan
At the International Horticultural Exhibition 2019 in Beijing, the organizers and stalls have roped in a new breed of assistants to cope with the rush of 16 million visitors from home and abroad.
One of them is iBEN, an adult-sized robot sporting a 27-inch interactive screen. The screen is meant for visitors to make their queries. iBEN then helps them to register, navigate the expo that is the size of nearly 500 football fi elds, and make business inquiries.
“I asked the robot about the park map, routes and information on the exhibition area,” said Liu Ying, a Beijing resident visiting the expo, delighted with the assistance.
英国脱欧后与各国尤其是美国重新签订贸易协定也是英国媒体重点关心的内容；该语料共1188字，共出现7种架构，共42次。其中，占比最高的几种架构为旅程架构(12次，占比29%)、方位架构(9次，占比22%)、人际关系架构(6次，14.6%)
In some food stalls, robot baristas are whipping up cups of cappuccino or doing the cleaning in just minutes.
The media center of the expo offers reporters from local and international media outlets 5G Internet connection, which makes downloading files dozens of times faster than when using 4G. It takes only seconds to download a full-length HD movie with a fi le size of 1GB.
1.原分类所得税制下，纳税人不同来源渠道的所得分别适用其费用扣除标准计算纳税。多渠道取得所得的纳税人可多次享受费用扣除，以降低其税负水平。在综合所得合并征税的制度下，对纳税人取得的收入需要汇总纳税。此时，不论纳税人的所得是单一渠道取得或是多渠道取得，都只能适用一次费用扣除，纳税人的税负水平不会因所得来源渠道数量不同而产生差异。
Tech for trash
The humble trash can is a prime example. As visitors throw waste in it, it sends out an alert when it is almost full so that it can be emptied. The over 3,000 manhole covers also use the same technology. When a cover comes loose, it sounds off an alarm, alerting the maintenance staff. Street lamps automatically adjust their brightness based on the ambient light available.
“It is the first time we are applying this latest technology and we want visitors to enjoy the convenience brought by high technology,” Guo Ziliang, Deputy Director of the Information Department of the expo’s Exhibition Coordination Bureau, said.
3.2.2 完善天然气管网。加快推进上海东侧天然气主干管网建设，尽早打通沪苏北通道。将宝钢专线并入全市天然气主干网，进一步提高上海东北区域的供气能力。
“We’ve tested the whole system numerous times. The expo could be a miniature version of a future smart city when 5G is fully put into use,” said Li Lumin, a China Telecom staffer.
Application of 5G cellular abounds in the expo. In the 5G exhibition hall of China Telecom, one of the main telecommunications service providers in China, visitors can snap selfi es with rare plants and watch highdefi nition videos to learn about the progress in self-driving vehicle technology, telemedicine, drone logistics and transportation, as well as other 5G network applications.
试验结果如表1所示，ACC为30 mg/L的SAEW、ACC为60 mg/L的SAEW、ACC为60 mg/L+3%的甘油、ACC为60 mg/L的SAEW+10%甘油的不同奶牛乳头药浴剂在反应时间5 s内，对奶牛乳房炎主要致病菌的杀菌率均大于81%，杀菌时间15s内杀菌率均超过88%；这四种药浴剂的杀菌效果与常用乳头药浴剂0.5%的聚维酮碘的杀菌效果比较，发现除了SAEW（30）的个别杀菌率低于聚维酮碘外，其它实验组基本上达到或超过对照组聚维酮碘的效果。SAEW加不同浓度的甘油后其杀菌率均大于96%，0.5%的聚维酮碘的杀菌率也超过93%。
Dancers perform during the Xinjiang Day event of the International Horticultural Exhibition 2019 in Beijing on September 16
China issued 5G commercial licenses on June 6, when China Telecom, China Mobile, China Unicom and China Broadcasting Network were authorized to operate 5G digital cellular mobile communication business. The 5G commercialization will boost the development of IoT and buoy China’s economic development, Guo said.
2.语言表达应简洁且富有节奏。低年级学生在口语交际能力上的表现并不成熟，若绘本中存在结构比较复杂句子，学生很有可能难以理解，而这一问题也会导致后续阅读过程和写话训练的开展难以达到预期。针对这样的问题，教师应在对绘本进行选择的过程中尽量选择语言具备一定重复性且结构简单的绘本。
Yu Shuang is enjoying an extraordinary view of the expo. Wearing a pair of high-powered virtual reality glasses, she is among a group of visitors who are watching live-streamed footage of the fair taken by remote cameras on drones fl ying around the exhibition venue, which is then beamed in real time via the 5G network. Thanks to the high speed of 5G and negligible delay in data transfer, the videos can be viewed almost immediately after they are recorded, giving viewers an immersive experience.
“This is so advanced! We can enjoy the best views of the expo,” she said.
These advanced technologies enable the park management to monitor the facilities without leaving their offi ce. The platform can display all the corners of the park through an interface. All of this is done via fifthgeneration wireless network (5G) technology connected with the sensors installed in each facility.
The expo’s intelligent system encompasses air monitoring, fire protection, sanitation, lighting and smart manhole covers. The service platform monitors all these items through sensors and the data is analyzed for future use.
The future has arrived at the expo that is a green as well as an intelligent fair with a smart management system comprising over 5,000 items and facilities that run on high technology.
Other cutting-edge technologies, including artifi cial intelligence (AI), the Internet of Things (IoT) and big data, are also employed at the expo to showcase the role of modern technology in improving the quality of life.
Green innovators
The theme of the expo, Live Green, Live Better, is also associated with technology, which has played a leading role in China’s ecological development.
In the past, a growing number of factories and power plants caused ecological damage and to tackle the challenge, the government introduced a number of green initiatives.
One of the latest is an AI-powered monitoring platform developed by the Feline Research Center of the National Forestry and Grassland Administration, Harbin Institute of Technology (HIT) and HIT Big Data Group to support research on ecological systems, animal populations and individual animals through advanced technology.
图2中柱形图从左向右分别代表有很大改进、有改进、无变化。三个图形分别表示理论联系实际、现代教育技术的应用、上课方式的改变。
The 5G Media Center of the International Horticultural Exhibition 2019 in Beijing
China Telecom’s 5G-enabled robot is unveiled at the International Horticultural Exhibition 2019 on April 29
Its main application for now will be monitoring endangered Siberian tigers and leopards that live mainly in the northeastern provinces of Heilongjiang and Jilin and border areas between China and Russia.
Ant Financial, an affi liate of Alibaba, one of the top Internet companies in the world, is using digital technology to advance green fi nance.
It has launched a scheme, Ant Forest, that encourages users to cut down on their carbon use in exchange of “green energy points.” When they acquire enough points, an actual tree is planted. Since its launch in August 2016, Ant Forest and its partnering non-governmental organizations have planted some 122 million trees in China’s driest areas, demonstrating the massive potential of fi ntech for supporting sustainable development.
Copyedited by Sudeshna Sarkar
Comments to zanjifang@bjreview.com