首页
登录
职称英语
Collision between an aircraft and one or more birds is termed a bird-strike.
Collision between an aircraft and one or more birds is termed a bird-strike.
游客
2023-10-13
19
管理
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.
A collision between an aircraft and one or more birds is known as a birdstrike. It usually happens when an aircraft is【R1】______, and may result in significant damage of the aircraft or loss of the aircraft and【R2】______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【R3】______Local authorities need to take care when deciding on【R4】______. 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【R5】______in order to bring about changes in land use. [br] 【R2】
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,乘客失去生命。”)
转载请注明原文地址:https://tihaiku.com/zcyy/3095039.html
相关试题推荐
Writeareportonaclassofstudentsbuyingbooksbetween2005and2015.Writea
Whatdosomescientistsusedroneaircrafttor?[originaltext]Somescientistsh
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
实际上,孩子们与父母之间的分歧并不像我们想象的那样大。(expect)Infact.thegapbetweenchildrenandtheir
Renaissancewasthetransitionalperiodbetweenthe______and______.A、Primitiv
Collisionbetweenanaircraftandoneormorebirdsistermedabird-strike.
______putforwardsthedistinctionbetweenLangueandParole?A、AssureB、Chomsky
Effectivereadingrequiresnotonly"readingbetweenthelines,"butalso"w
随机试题
Ishouldverymuchliketogototheparty,but______.A、IwillnotbeinvitedB、
AU.S.biotechnology(生物工艺学)firmsaidonWednesdayithaddevelopedanewtec
Theshapeofheart,composedofinterweavedhearts,signifiesthatvolunteers
[originaltext]Accordingtolatestpsychologicalresearch,appearancedoesa
下列嗜铬细胞瘤(pheochromocytoma)的特点中,错误的是A.以释放大
对于拟建项目人力资源,可以多方位、多角度地进行配置和组合。不同方位和角度的组合,
患者,女,24岁,未婚,停经54天,阴道少量流血1天,左下腹闷痛1天,今晨加强。
李某不服区公安分局对其作出的行政拘留5日的处罚,向市公安局申请行政复议,市公安局
电信网间互联管制的原则之一是()。A.保证运营商获利水平一致 B.保证非歧视性
某220kV线路,某段路径穿越工矿污秽区,据地网局审定的“污区分布图”,被划分为
最新回复
(
0
)