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
2013-01-10
57
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 landsuse 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,乘客失去生命。”)
转载请注明原文地址:https://www.kaotiyun.com/show/WAAK777K
本试题收录于:
B类竞赛(英语专业本科专科)题库大学生英语竞赛(NECCS)分类
0
B类竞赛(英语专业本科专科)
大学生英语竞赛(NECCS)
相关试题推荐
Changesinthewaypeoplelivebringaboutchangesinthejobsthattheydo.Moreandmorepeopleliveintownsandcitiesinste
中国是世界上种茶最早、制茶最精、饮茶最多的国家,是茶的故乡。最初,茶只是被作为一种药材而非饮品。【T1】后来,古人逐渐将茶从材中分离出来称为一种清热的饮料。(定语从句)在那之后,中国的茶文化逐渐形成。【T2】据史料记载,西汉时期已经有了饮茶的习
Imagine,JohnLennon’smostfamoussong,wasrecentlyvoted"Britain’sfavouritesongofalltime".It’sanidealistsongabou
"Home,sweethome"isaphrasethatexpressesanessentialattitudeintheUnitedStates.Whethertherealityoflifeinthefa
"Home,sweethome"isaphrasethatexpressesanessentialattitudeintheUnitedStates.Whethertherealityoflifeinthefa
Thereisdistinctionbetweenreadingforinformationandreadingforunderstanding.【B1】________Thefirstsenseistheone
Whendifficultpeopleexpressthemselvesorally,theygenerallywantatleasttwothings:they’vebeenheardandthey’vebeen
Everyyearalargenumberofyoungpeopleleaveschoolandbeginwork.Some【21】jobsonfarmsorinindustry.Othersacceptposit
TheUnitedKingdomBritain(orGreatBritain)isanislandthatliesoffthenorth-westcoastofEurope.Thenearestcountr
YYZZZYZZYisto221112112asYYZZYZZYisto______.
随机试题
从技术上,入侵检测可以分为基于标识和基于_______两种。
拒绝他人请求给付的权利,在民法上称为()。
当地基计算沉降过大或结构物对不均匀沉降敏感时,可采用()。
根据《联合国国际货物多式联运公约》,多式联运经营人对毛重每公斤货损的赔偿限额为()。
三声中部:
临床医学中最常用的智力测验是()。
印刷组和装订组的成员来自以下七名员工——F,G,H,J,K,L和M,每个组的成员构成必须满足下列条件:(1)每个组至少有三名员丁:(2)F和K不能在同一个组;(3)如果K在某个组,J也必须在这个组;(4)M至少是这两
利润指标
FreeStatinsWithFastFoodCouldNeutralizeHeartRiskFastfoodoutletscouldprovidestatindrugsfreeof【C1】______sotha
Lookatthefollowingpeople(Questions20-22)andthelistofopinionsbelow.Matcheachpersonwiththeopinioncreditedtohim.
最新回复
(
0
)