首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、It is implemented by one single company. B、It is not effective under extreme weather. C、It costs 5 million dollars per kilomet
A、It is implemented by one single company. B、It is not effective under extreme weather. C、It costs 5 million dollars per kilomet
admin
2021-08-20
53
问题
Major world automakers have already invested heavily in electric vehicles and related technology—and they are committed to keep doing so.
Some have even promised to stop producing vehicles that run only on gas or diesel fuel in the future. The changes to the auto industry demonstrate the growing number of buyers willing to spend more money on environmentally friendly cars.
But one of the main issues with the technology is that drivers need to charge the batteries often to be able to travel longer distances. The batteries themselves can also greatly increase the price of the vehicles. They can also be very costly to replace. Now, a new technology is being developed and tested in Sweden to help resolve these issues.
Engineers there have created what is thought to be the world’s first operating electrified road. A Swedish company, Elways , invented the technology.
The project, involving several companies, is called eRoadArlanda. A large, specially built electric truck transports goods along a two-kilometer-long stretch of road from Stockholm’s Arlanda airport. The truck’s battery is charged from the electrified road as it travels. CEO Hans Saell has led the project since 2013.
He explains that the technology works in a simple way. A 15-centimeter-wide electrical rail is built into the road. The vehicle contains equipment that automatically senses the electrified road.
An arm then lowers from the vehicle to make contact with the rail. Saell says the system is designed to make continuous charging on the road effortless for the driver. He says the system can be built into existing roads to reduce costs. He estimates that putting in a highly developed version of eRoadArlanda’s technology would cost about 1 million dollars per kilometer.
That amount sounds like a big number and could add up fast over thousands of kilometers. But Saell says the cost is still a lot less when compared to other transportation infrastructure projects. He added that the vehicle equipment also costs much less than systems that would require electrical equipment above ground, such as railways or street cars.
Project leaders say the electrified road has been tested in all kinds of weather and even proved effective in snow and ice. Saell says the powered road is also safe because the electricity is below the surface and well covered.
The road is also not electrified all the time. The electricity turns on in 50-meter stretches only when an equipped vehicle is travelling on the road. Saell says the eRoadArlanda system still needs a lot of development before it will be ready for wide industrial use. But he estimates this could happen in just 5 to 10 years.
Questions 19 to 22 are based on the recording you have just heard.
19. What do the changes to the auto industry show?
20. What is a major issue with the electric vehicles?
21. What does Hans Seall say about eRoadArlanda system?
22. What can we learn about eRoadArlanda system?
选项
A、It is implemented by one single company.
B、It is not effective under extreme weather.
C、It costs 5 million dollars per kilometer.
D、It has not been ready for wide industrial use yet.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/8uD7777K
0
大学英语六级
相关试题推荐
DealingwithCriticismA)Noonelikesgettingcriticism.Butitcanbeachancetoshowoffarareskill:takingnegativefeedba
DealingwithCriticismA)Noonelikesgettingcriticism.Butitcanbeachancetoshowoffarareskill:takingnegativefeedba
TheHistoryofEarlyCinemaA)Thehistoryofthecinemainitsfirstthirtyyearsisoneofmajorand,tothisday,unparalleled
ObtainingLinguisticDataA)Manyproceduresareavailableforobtainingdataaboutalanguage.Theyrangefromacarefullyplann
TakingVacationsExperiencesan82PercentIncreaseinJobPerformanceA)Thistimeofyear,manyEuropeansarelookingforwardt
It’swellestablishedthatsmokingcigarettes,especiallylargequantitiesofthem,isbadforyourhealth.Butanewstudyshow
Yourweightaffectshowlongyoulive—butit’sextremelycomplicatedA)Weoftenthinkaboutweightlossintheshortterm,h
Dreamsareastateofconsciousness,anexperiencethatyouhavewhenyouareasleep.Whenyoudreamsomethingyouhaveanexper
EveryoneknowsHongKongasthelivelyislandcityishometooversevenmillionpeopleperpetuallyonthemove.Butitmaybea
Thefirsttimeyourbosssuggeststhatyouformallypresentsomethingtoyourdepartmentoraclient,yourreactionmaybepanic
随机试题
A、Hedoubledthereward.B、Hesethimanexample.C、Hecheeredhimonalltheway.D、HehadtheeventcoveredonTV.A
根据我国《劳动保障监察条例》的规定,劳动保障监察的公开原则的“公开”是指()
患者,男,25岁。5天前劳动后出现右下后牙区胀痛,进食,吞咽时加重,昨日起出现局部自发性跳痛,张口受限,低热头痛。检查:右下颌角区稍肿胀,无压痛,张口度两指。近中阻生,牙龈红肿充血,挤压可见远中盲袋内少量脓液溢出,相当于颊侧前庭沟丰满,充血,压痛明显,有波
李女士被确诊患有滴虫性阴道炎,准备用自助冲洗器灌洗阴道,护士应指导她将醋酸冲洗液的浓度配置为
患者,女性,20岁,1型糖尿病患者,出现恶心、厌食2天,神志不清1小时,查体面色潮红,呼吸深快,意识障碍。诊断方面最可能是
A.影响酶的活性B.作用于受体C.干扰核酸代谢D.影响细胞膜离子通道E.影响生物活性物质及其转运体抗高血压药依那普利的作用机制是()。
1.背景某省政府研究考虑扩建省会机场,报请上级主管机关审批;并请某机场规划设计院进行规划设计。该机场规划设计院经研究后认定,机场的扩建将导致机场净空保护区扩大,并明确提出:(1)附近山坡上的A磨料厂(私人企业)位于机场净空保护区域内,且烟囱超高;同时,
()是指员工在劳动合同期未满时决定提前结束合同关系,主动离开企业组织的行为。
累计工作满20年以上的职工,请病假累计()以上的,该职工不再享受当年年休假。
现在社会出现一种现象,大城市人才过多。学生大多喜欢报考大城市的警察职务,却很少有人愿意报考中小城市特别是偏远山区的职位,你怎么看待这个问题?
最新回复
(
0
)