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
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew memb
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew memb
admin
2013-09-28
29
问题
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew member by simulating flight conditions. The purpose of simulation is not to completely substitute【C1】______ actual flight training but to thoroughly familiarize students with the Vehicle【C2】______ before they【C3】______ extensive and possibly dangerous actual flight training. Simulations also is useful for review and for familiarizing pilots with new【C4】______ to existing craft.
Two early flight simulators appeared in England within a decade after the first flight of Orville and Wilbur Wright. They were designed to enable pilots to simulate simple aircraft【C5】______ in three dimensions: nose up or down; left wing high and right low, or vice versa; and【C6】______ to left or right. It took until 1929, however, for a truly effective simulator, the Link Trainer, to appear, devised by Edwin A. Link, a self-educated aviator and inventor from Binghamton, New York.【C7】______ , airplane instrumentation had been developed sufficiently to permit "blind" flying on instruments alone, but training pilots to do so involved【C8】______ risk. Link built a model of an airplane cockpit equipped【C9】______ instrument panel and controls that could realistically simulate all the movements of an airplane. Pilots could use the device for instrument training, manipulating the controls【C10】______ instrument readings so as to maintain straight and level flight or【C11】______ climb or descent with no visual reference【C12】______ any horizon except for the artificial one on the instrument panel. The trainer was modified 【C13】 ______ aircraft technology advanced. Commercial airlines began to use the lank Trainer for pilot training, and the US government began purchasing them in 1934,【C14】______ thousands more as World War II approached. Technological advances during the war, particularly in electronics, helped to make the flight Simulator increasingly【C15】______ . The use of efficient analog computers in the early 1950s led to further improvements. Airplane cockpits, controls, and instrument displays had by then become so individualized that it was no longer feasible to use a generalized trainer to prepare pilots to fly anything【C16】______ the simplest light planes. By the 1950s, the US Air Force was using simulators that precisely【C17】______ the cockpits of its planes. During the early 1960s【C18】______ digital and hybrid computers were adopted, and their speed and flexibility revolutionized simulation systems. Further advances in computer and【C19】______ technology, notably the development of virtual-reality simulation, have made it possible to【C20】______ highly complex real-life conditions.
【C10】
选项
A、on the part of
B、on the basis of
C、on the track of
D、on the verge of
答案
B
解析
本题考查词组辨析。A(由……作出)B(根据)C(在……轨道上)D(在……边缘)。根据上下文,根据仪表的读数来操作。B符合句意。
转载请注明原文地址:https://kaotiyun.com/show/4xLK777K
0
专业英语四级
相关试题推荐
Ifweviewascienceasabodyofsystematizedknowledge,thenchemistryisusuallycalledanaturalsciencebecauseit【C1】____
Ifweviewascienceasabodyofsystematizedknowledge,thenchemistryisusuallycalledanaturalsciencebecauseit【C1】____
ShoppinghabitsintheUnitedStateshavechangedgreatlyinthelastquarterofthe20thcentury.【C1】______inthe1900smostA
Nord’sNet:"WaysofKnowing"fortheScienceClassroomItisapparentthatProfessorWarrenA.NordhasfoundEddington’s
WhathashappenedtotheCubans?
Forthepasttwoyears,Ihavebeenworkingonstudents’evaluationofclassroomteaching.Ihavekeptarecordofinformalconv
Socialinstitutionsarenowbeingcalled______toprovideassistancetothehomeless.
Notlongago,amysteriousChristmascarddroppedthroughourmailslot.TheenvelopewasaddressedtoamannamedRaoul,who,I
Ifnuclearbombsaredroppedonanareathesurvivorswill
Itisrareforataleofacademicmismanagementinasmallinstitutiontograbnationalattention.ButSciences-Poisnoordinar
随机试题
《纪念傅雷》一文中用以赞美傅雷品格的“浩然之气”一词,出自
病人,女性。25岁,晨醒后脉率98次/分,血压120/70mmHg,其基础代谢率为
2001年建筑设备试题【试题要求】1.任务描述图4.3一8、图4.3一9为某科研办公楼第18层的局部平面图、剖面图,按照要求做出空调及照明平面布置图,既要考虑送风及照度均匀,又要照顾顶棚布置的美观协调,且符合规范要求。本题不考虑烟感系统和喷淋系统。
采取()方式投资形成的股权或资产,由国家授权经营机构依法行使出资人权利。
某期货公司注册资本为1亿元,其中甲公司出资700万元。下列关于期货公司与甲公司关系的表述,错误的是()。[2016年3月真题]
(2008年考试真题)基金的运作中的主要费用有()。
下列各项关于甲公司现金流量表的列示,会计处理正确的是()。
先进生产力的集中体现和主要标志是()
面向对象的设计方法与传统的面向过程的方法有本质不同,它的基本原理是______。
DieMausf?hrt______Wagen.
最新回复
(
0
)