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
2023-10-15
31
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.
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.
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. Question 71 to 75
Complete the summary below with information from the passage, using three words or fewer for each blank.
A collision between an aircraft and one or more birds is known as a bird strike. It usually happens when an aircraft is close【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/3100824.html
相关试题推荐
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
TheWarsofthe______wereaseriesofdynasticwarsbetween1455and1485fough
Shakespeareproducedmostofhisknownworkbetween1589and1613.Hisearlypla
TheWarsofthe______wereaseriesofdynasticwarsfoughtbetweensupportersof
______schoolpolicy,thestudentshadaholidaybetweenChristmasandtheNewYe
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
随机试题
Marketingbye-mailingisontheincrease.Comparedtoothermedia,e-mailme
Whatproblemdoesthewomanhave?[originaltext]W:Iwanttoregisterforthism
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
1、资料(一) 鑫龙制药(集团)有限公司(以下简称鑫龙制药或公司)是一家较早成
非公开发行违规担保是否解除()。 Ⅰ.提供互保 Ⅱ.交易所已
男性,21岁,野炊后发热等腹痛,里急后重,大便次数明显增加,脓血便。便培养SS琼
330kV及以上变电站应安装(____),220kV及以下变电站应预留应急电源接
通过()的变革尝试,使控制性详细规划在法律的严肃性方面取得了进展。A.机构
下列结节性甲状腺肿的手术适应证,错误的是A.有压迫症状 B.伴有甲亢 C.疑
下列条件不属于出口货物退税的必要条件()。A.必须是属于增值税、消费税征税范
最新回复
(
0
)