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
70
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
the lives
解析
(文章第二段提到If this were to happen…the aircraft and the lives of those on board.“当所有这些发生的时候,就会造成飞机失事,乘客丧命。”)
转载请注明原文地址:https://kaotiyun.com/show/r8VK777K
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
Writteninahurry,________.
A、NotlaterthanSept.20.B、15to20daysbeforedelivery.C、15daysaftershipment.D、Aweekbeforeshipment.B根据原文可知,付款方式为信用证
Dannyleftthis________messageonmyansweringmachine:"Imustseeyou.Meetmeattwelveo’clock."Didhemeannoonormidni
(1)Councilleadersarecallingonthegovernmenttogivethemgreaterpowerstocheckonthegrowingnumberofchildrenwhoare
(1)YousufKarsh,theCanadianportraitartistwhophotographedmanyofthemostinfluentialfiguresofthe20thcentury,diedi
SATURDAYa)Laterthatday,thepolicewentintotheforestandfoundtheboy.Hewasabout5,buthecouldnotanswerthe
SarausuallygoestoGirlGuidesonaThursday.TodayisWednesday.NowunderlinetheONEanswerbelowwhichmustbeTRUE.
A、She’slearnedalotfromtheliteratureclass.B、She’swrittensomebooksaboutworldclassics.C、She’smetsomeoftheworld’
Bynomeans______lookdownupontheunemployed.
随机试题
一个时期某一阶层或某一行业的人群对文化问题所持的态度和看法,或在某一文化事象里所表现的意识形态,称作()
尿道下裂的叙述下列哪项是错误的
蜘蛛痣常见的部位不包括
药品经营企业依法变更许可事项,应重新办理《药品经营许可证》的情形是()。
患者,女性,30岁,7天前受凉后,出现乏力、恶心,颜面水肿,测血压180/105mmHg,可见肉眼血尿,3天后,尿量减少至100ml/d,查血钾55mmol/L,血肌酐308μmol/L,呼吸22次/分,双下肢中度水肿。针对尿量变化,护理措施中最重要的是
患者,男性,45岁。因腹痛伴发热、恶心呕吐以“急性胃肠炎”收住入院时患者呈急性面容,精神萎靡,查体:T38.1℃,脉搏100次/分钟,粪便呈水样。属于主观资料的是()
某高层建筑的地下配电室采用预制灭火系统,安装数量不宜大于()台,必须同时启动,动作响应时间不得大于()s。
(一)资料某企业2012年经济业务基本情况如下:(1)年初购置设备一台,年初一次性投资210万元,预计该设备可以使用5年,采用直线法计提折旧,预计第5年年末净残值为10万元。(2)该项设备投资计划可使企业每年增加净利润30万元。(3)该企业2012
采用(),一般将投资者分为风险厌恶、风险中性和风险偏好三种类型。
Basedonpintobeansandcorntortillas,thePimaIndianhaveadietthatderives70percentofitsproteinformvegetablesourc
最新回复
(
0
)