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
The sun heats the Earth’s surface unevenly causing differences in air pressure. It’s these differences that cause wind to flow o
The sun heats the Earth’s surface unevenly causing differences in air pressure. It’s these differences that cause wind to flow o
admin
2021-06-15
48
问题
The sun heats the Earth’s surface unevenly causing differences in air pressure. It’s these differences that cause wind to flow over our planet’s surface. Scientists convert wind energy into electrical energy by using wind mills or wind turbines. The turbines take the movement of the air and convert it into mechanical energy. Each wind mill contains blades that are connected to a generator. The faster the blades spin the more energy that is produced by the generator. In areas that have constant winds, you will find wind farms and small, wind-driven generators. On these wind farms are hundreds of wind turbines capable of providing the electricity for entire communities. The small wind-driven generators are used for individual homes to produce electricity. Similar to solar energy, wind energy cannot be consistently used. There are areas around the world that do not have constant winds. In areas like windy mountain passes, the wind does not blow continuously. Therefore wind energy is only dependable for certain areas of the planet.
选项
答案
太阳使地球表面受热不均而造成气压的差异,正是这些不同的气压引起我们这个星球表面风的流动。科学家利用风车或风力涡轮机将风能转化成电能。涡轮机吸取流动的空气,并将其转化成机械能。每个风车都装有与发电机相连接的叶片。叶片旋转得越快,发电机产生的能量就越多。在有恒定风的地方,你会发现风力发电场和小型的风力发电机。在这些风力发电场中有数百个风力涡轮机,能够为整个社区提供电力。那些小型的风力发电机所产生的电力供个人家庭使用。与太阳能相似的是,风能不能持续使用。世界上有些地区没有恒定风。在有些地方,诸如风力很强的山口,风时断时续。因此,只有地球上的某些区域才有可靠的风能。
解析
转载请注明原文地址:https://kaotiyun.com/show/m3TO777K
0
考博英语
相关试题推荐
ToproducetheupheavalintheUnitedStatesthatchangedandmodernizedthedomainofhighereducationfromthemid1860’stot
Colour-blindpeopleoftenfinditdifficultto______betweenblueandgreen.
WiththeUSeconomyslowingdown,layoffsareeverywhere.Noindustryisspared.Ifyouenduphavingtostartover,inaddition
To______thestructuralimbalancesinthebudget,andalsointheeconomytheAdministrationhasgivenitssupporttoaconstitut
Agriculturemust,therefore,______workersandsavingstothenewindustrialized,urbanizedsectorsifamoderneconomyistobe
Theyarelookingfora______experiencedsecretarywhoiscapableoforganizingabusysalesoffice.
They______themselves______thepoliticianbecausetheyhopedhewouldbecomepresidentoneday.Atlasthedid.
Mailservicewillbetemporarily______becauseofthestrikeofthepostalworkers.
The______featureinTed’scharacterwaspride;hecouldn’teverthinkofdependingonanyonebuthimself.(2011年南京大学考博试题)
Manyparentsarebusysendingtheirchildrentovarioustalentshow.______matterstothemistoturntheirchildrenfamousover
随机试题
间接血凝试验阳性
患者,女性,60岁,因肺炎住院治疗,因长期输液需要,预留置静脉套管针。对该患者的处理,下列不正确的是
动力黏性系数M的单位是Pa.S,用M、T、L表示M的量纲是()。
某公司为员工马某提供专项培训费用5万元,对其进行专业技术培训,双方约定服务期5年,违约金5万元。工作满2年时,马某辞职,马某最多应向该公司支付违约金()。
周某原有两套住房,2009年8月,出售其中一套,成交价格为70万元;将另一套以市场价格60万元与谢某的住房进行了等价置换;又以100万元价格购置了一套新住房,已知契税的税率为3%。根据契税法律制度的规定,周某计算应缴纳的契税的下列方法中,正确的是(
2007年1月12日,某县质监局王某独自到辖区内一集贸市场进行执法检查。在检查中,发现当事人李某有违法行为,王某出示工作证后,当场对李某作出罚款500元的处罚决定。李某不服,与王某争辩,王某以李某无权申辩为由加重处罚,罚款1000元,并当即收缴了这1000
所有的法定正式公文都应当标注签发人姓名。()
某容器中装有盐水。老师让小强再倒入5%的盐水800克,以配成20%的盐水。但小强却错误地倒入了800克水。老师发现后说,不要紧,你再将第三种盐水400克倒入容器,就可得到20%的盐水了。那么第三种盐水的浓度是多少?
试述卫星广播电视的应用对我国广播电视业的促进。(南京师范大学,2009年)
ThingstobeTaughtinEverySchoolI.Introduction:Importanceofstudents’abilitytodealwiththerealworld.A.Speaker’so
最新回复
(
0
)