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
California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality,now that Calif
California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality,now that Calif
admin
2011-01-10
62
问题
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality,now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatts(兆瓦)of power beamed down from solar-power satellites beginning in 2016.But some major challenges will have to be overcome if the technology is to be used widely.
A start-up company called Solaren is designing the satellites,which it says will use radio waves to beam energy down to a receiving station on Earth.
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in geosynchronous(与地球同步的)orbit.Earth-based solar ceils,by contrast,can only collect sunlight during daytime and when skies are clear.
But space.based solar power must grapple(努力克服)with the high cost per kilogram of launching things into space,says Richard Schwartz of Purdue University in West Lafayette,Indiana.“If you’re talking about it being economically viable for power of the Earth,it’s a tough go,”he says.
Cal Boerman,Solaren’s director of energy services,says the company designed its satellites with a view to keeping launch costs down.“We knew we had to come up with a different,revolutionary design,” he says.A patent the company has won describes ways to reduce the system’s weight,including using inflatable mirrors to focus sunlight on solar cells,so a smaller number can collect the same amount of energy.
But using mirrors introduces other challenges,including keeping the solar cells from overheating,says Schwartz.“You have to take care of heat dissipation(散发)because you’re now concentrating a lot of energy in one place,”he says.According to the company’s patent,Solaren’s solar cells will be connected to radiators to help keep them cool.
Though Boerman says the company believes it can make space-based solar power work,it is not expecting to crowd out other forms of renewable energy.Laws in California and other states require increasing use of renewable energy in coming years,he points out.“To meet those needs,we’re going to need all types of renewable energy sources,”he says.
Solaren is going to design 200 solar-power satellites.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
关键词是Solaren和design…satellites。依据此关键词,可在文中第二段找到相关叙述:A start-up company called Solaren is designing the satellites(一家名为Solaren的新公司正在设计卫星),由此可知Solaren公司确实正在设计卫星,但文中并没提到是否会设计200颗太阳能卫星,故此题为“未提及”的。
转载请注明原文地址:https://kaotiyun.com/show/AfLd777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
CaribbeanIslandsWhatwouldyouseeifyoutookacruisetotheCaribbeanIslands?Palmtreesandcoconuts(椰子)?Whitebeach
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
ProlongingHumanLife1Prolonginghumanlifehasincreasedthesizeofthehumanpopulation.Manypeoplealivetodaywouldhave
Below600feetoceanwatersrangefromdimlylittocompletelydark.
EconomicReforminChinaMoreUSsinologistshaveexpressedconfidenceinChina’seconomicreformandtheprospectsforChina’s
Accordingtothepassage,thepurposeofeffectivereadingwithhigherspeedismostlikelytohelpyou______.Whichofthefo
Jackisadiligentworker.
WhatisChineseNewYear?InmanypartsofAsia,nationsfollowthelunarcalendarratherthantheGregoriancalendarusedb
Thetwobankshaveannouncedplanstomergenextyear.
MoreThanJustMoneyWhenPatriciaRochesterdecidedtogobacktoschoolaftertenyearsasastaffnurseatTorontoWester
随机试题
若.则f(x)在x0点()
Heraisedhisarmsto______hisfacefromtheblow.
患者女性,50岁,查体见乳头回缩,乳房无红肿热痛,首先考虑
控制病毒遗传变异的病毒成分是
颌面外伤清创时只能清除下述哪种组织
证券公司违背客户的委托买卖证券、办理交易事项、以及其他违背客户真实意见表示,办理交易以外的其他事项,给客户造成损失的,依法承担赔偿责任,并处以()的罚款。
一般来说,主要是从人类原始的好奇心和探究欲中派生出来的内驱力是()。
杨柳俺孝凤参阅扬俺晓风残月柳扬弗疯柳俺阅小
2015年全国海洋生产总值64669.亿元,比上年增长7.0%,海洋生产总值占国内生产总值的9.6%。其中,海洋第一产业增加值3292亿元,第二产业增加值27492亿元,第三产业增加值33885亿元。2015年我国海洋经济三个产业增加值的比重约为:
结合当代教学改革的现实,论述当代教学模式发展的基本方向和任务。
最新回复
(
0
)