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 collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cru
A collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cru
admin
2012-05-06
95
问题
A collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruising altitudes, but most of them happen when an aircraft is relatively close to the ground, usually in proximity to an airport and during the circling, descent to land or take-off phases of a flight.
Birdstrikes may cause significant damage to an aircraft and/or, if the birds are ingested into a jet engine, a significant and sudden loss of power. If this were to happen during take-off or initial climb of a fully loaded passenger aircraft the results could be catastrophic—loss of the aircraft and the lives of those on board. Any bird is a potential hazard to aircraft and this is especially true as bird numbers and bird size increase.
Unfortunately airports themselves can be attractive to birds—rodents, insects and other small animals are a food source often found in flat grassed areas such as the runway strips. Even so, this problem can be reduced by careful habitat management or bird harassment techniques practised by airport maintenance and safety personnel.
Care needs to be taken by local authorities in deciding the location of rubbish tips, or when permitting other land uses that may be attractive to birds in this way. Of course these effects cannot always be anticipated with certainty since birds such as gulls have been recorded as travelling 50 ki-lometres or more from their roosting area to an attractive food source.
Local authority planning schemes often apply strict controls on developments such as abattoirs, cattle feed lots, grain handling, piggeries, canals and marina developments, fish farms, and suchlike. In most cases these uses will not be permitted without a full environmental study. That study should be required to deal with the question of likely bird hazards if the proposed location is in proximity to an airport.
In some instances it may be necessary to consider ways of managing a particular land use in order to reduce its attractiveness to birds, for example the adoption of land-fill measures at garbage tips, or enclosed rather than open-air activity. Specialist ornithological opinion may be necessary. In such cases it may not be possible to implement immediate changes in land use, but this should not inhibit the adoption of long-term measures which are designed to achieve this. Summary:
A collision between an aircraft and one or more birds is known as a bird strike. It usually happens when an aircraft is close【61】, and may result in significant damage of the aircraft or loss of the aircraft and【62】of passengers and crew if they occur during take-off or initial climb. Because birds can find plenty food in flat grassed areas, airports are especially attractive to birds. However, the danger can be minimized by【63】Local authorities need to take care when deciding on【64】It is suggested that a full environmental study should be made before making plans of developments on the land in proximity to an airport. Local authorities should get advice from specialists and take【65】in order to bring about changes in land use.
选项
答案
measures
解析
(文章最后一段最后两句话提到In such cases it may not be possible to implement…measures which are designed to achieve this.摘要_中可以概括为measures。)
转载请注明原文地址:https://www.kaotiyun.com/show/58VK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
HowtoGettheMostfromYourCollegeProfessors【T1】________yourprofessors.usetheschool’s【T2】________—thepr
AbundanceWhatisabundance.a【T1】________—awayoflivingyourlife.a【T2】________—appearinginyourph
Non-fatdairyproductssupplytheneedednutrientswithout________calories.
HehadlivedillegallyintheUnitedStatesforfiveyearsafterhistouristvisa________.
Lifeinsuranceisfinancialprotectionfordependentsagainstloss________ofthebreadwinners’death.
(1)Acollegedegreehasneverbeenmorenecessary:graduatesearn,onaverage,80%morethanhigh-schoolgraduates.Yetevermo
—Hello!CanIspeaktoAlice,please?—Sorry.Sheisn’tinatthemoment.—______?Pleasetellhertocallmebackonmymobile.
Bynomeans______lookdownupontheunemployed.
Bynomeans______lookdownupontheunemployed.
Guest:Ihavetogonow.Thankyouforthedeliciousmeal.Hostess:You’rewelcome.______
随机试题
肺炎喘嗽辨证应分辨肺炎喘嗽初期应辨明
以下传染病使用蓝色标志,但除外
甲给乙开了一张2万元的现金支票,乙将支票背书转让给丙,后甲发现被乙欺诈,但丙拿着支票向甲要求偿付时,甲必须给丙2万元,这说明了票据的()。
中国传统文化中,对孕妇及产后妇女提出了诸多禁忌,如忌风、忌水、忌口等等,如今这类禁忌与时俱进,又加了一条“忌辐射”。那银光闪闪的防辐射服,已经成为中国孕妇的“标配”。最近有专家却称,防辐射服没必要穿,其根本就不能起到防辐射的作用。下列各项如果为真,哪项能够
实行价格歧视的前提条件有()。
3,5,11,29,()。
2012年2月20日,日本名古屋市市长在接待南京市代表团的时候,公然发表()的言论,歪曲历史事实,伤害民族感情.引发我国各界的强烈抗议。
根据下面材料回答问题。2012年1~3月份,我国规模以上工业企业资料如下:全国规模以上工业企业实现利润10449亿元,同比下降1-3%。其中:国有及国有控股企业实现利润3172亿元,同比下降12.4%;集体企业实现利润178亿元,同比增
TheeconomistGeorgeAkerloffoundhimselffacedwithasimpletask:mailingaboxofclothesfromIndia,wherehewasliving,t
在面向对象方法中,不属于“对象”基本特点的是()。
最新回复
(
0
)