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
Collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruis
Collision between an aircraft and one or more birds is termed a bird-strike. Pilots sometimes record a birdstrike while at cruis
admin
2011-03-05
41
问题
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.
bird-strikes 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.
Further problems may arise because the airport is located on bird migration routes. These may have existed prior to the airport site selection--but may not have been taken into account because the problem was not understood at the time--or have only been recently established because the birds have found an attractive new food source. 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 kilometres or more from their roosting area to an attractive food source.
Agricultural uses may be thought desirable because they are compatible with high levels of noise exposure, but they can have an adverse effect on air-craft operations if birds are attracted during seeding or crop cultivation. Birds may also be attracted to pig farms where garbage is used as fodder. Even tree plantings can present a hazard if the species provides an attractive food source or nesting habitat.
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 birdstrike. It usually happens when an aircraft is【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
land uses
解析
(文章第四段提到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.当政府部门在决定陆地的使用时,应该考虑这些使用会不会影响机场的运作。因此摘要中应该概括land uses。)
转载请注明原文地址:https://jikaoti.com/ti/LHlMFFFM
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
SummaryListentothepassage.Forquestions26~30,completethenotesusingnomorethanthreewordsforeachblank.Thepr
有些人的成功常常让周围的人大惑不解,因为他们似乎从来都不工作,或者没有长时间地工作。【T1】他们的成功秘诀在于他们专注的能力,因而能够凭借最小的明显努力获得最大的成果。(liein)爱默生说:“无论是在政治、战争、商业,还是在一切人类事务的处理中,专注都
Beingabletomulti-taskishailedbymostpeopleasawelcomeskill,butnotaccordingtoarecentstudywhichclaimsthatyoun
It’snotalwayseasytodecidewhichsportto【66】t______up.Whenchoosing,itisimportanttorememberthatexcellenceinsport
It’snotalwayseasytodecidewhichsportto【66】t______up.Whenchoosing,itisimportanttorememberthatexcellenceinsport
【B1】______Nochildimitateseveryactionhesees.Sometimes,theexampletheparentwantshimtofollowisignoredwhilehetake
A、10B、15C、20D、30B这道题是典型的数字类题型,考查数字的分析与计算。对话录音内容非常贴近生活,询问求职广告的花费。录音中没有直接给出答案,需要参赛者在听的同时将对话中出现的所有数字和其对应的对象用笔记录下来,然后进行简单的计算。从
They______suchabigvan______thepriceofgaswouldskyrocket.
Miningoperationsbytheirverynaturehavemajorimpacts,positiveandnegative,onthelocalareaandonlocalcommunities.Th
随机试题
小李是某幼儿园小班的教师,刚工作不久就满怀热情地投入到教育实践中,、可令她苦恼的是,在组织班级活动时,她发现小朋友们很难集中注意力,教室里一有响动,他们就会分心。无论是听故事、画画还是看图书,小朋友们的注意力都只能集中几分钟,这样一来,小李老师事先设计好的
简析“问君能有几多愁?恰似一江春水向东流”能称为千古佳句的原因。
关于食管下段括约肌(LES)的结构与功能,下面哪些说法不恰当
冯女士,第一孕,妊娠40周,初产妇。临产6小时,宫口开大3cm;临产11小时,宫口开全,先露头,先露“0”,胎心正常。宫口开全已2小时,产妇仍在屏气用力,此时,产程属于
股静脉注射,下述哪项是错误的:
基坑(槽)回填土施工过程中,应查验()等项目。
以下关于文档的说法错误的一项是()。
商检机构依据《商检法》的有关规定,对非法定检验的进出口商品可以实施定期检验。( )
给定资料1.2009年,一群来自深圳的普通工人成为美国《时代》周刊的年度人物。周刊一出版,中国工人的灿烂笑容,瞬间给经济低迷的世界带来希望。他们坚毅的目光、质朴的外表、倔强的神态,真实地反映了中国工人的性格,这种性格,为“中国制造”贴上光亮的标签
【F1】OnemeaningoftheGreekword"dran"istoaccomplish,andinthismeaningliesafurtherkeytothestructureofdrama.Ap
最新回复
(
0
)