第31课 大气数据系统 LESSON 31 AIR DATA SYSTEM(20)

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26. index            [ 'indeks ]     n.      标志; 定位标(志)
27. prepare           [ pri'p ]    v.  准备;预备
28. unless     [ n' les ]   conj.    除非…否则;
                       unless经常用来代替if not
29. advance          [ d'va:ns ]     v.      推进; 前进
30. predict            [ pri'dikt ]   vt.    预报; 预测
31. takeoff  rating     [ 'reiti ]          起飞(推力)额定值
32. adjustment       [  'd stmnt ]   n.    调节;调整
33. overcome        [ ouv'km ]   v.      克服
34. rigging tolerance   [ 'rigi ] [ 't  lrns ]   装配误差(公差)
35. CAS = Computed airspeed            计算空速
36. servomotor        [ 's:vou'mout ]   n.   伺服马达
37. unable            [ 'n'eibl ]  a.      不能;无能力的
38. adjust            [ 'd st ]  vt.      调节(整)
39. VNAV = Vertical navigation            纵向导航
40. terminate         [ 't:mineit ]   v.      终(中)止; 结束
41. against            [ 'genst ]   prep.   相对于; 倚着;贴着
42. capture           [ 'kæpt ]  n. ; vt.        截获;捕获
43. squat             [ skw  t ]  v. ; n.        着陆
44. residual           [ ri'zidjul ]  a.         剩余的;残留的

 

TEXT
[1] The autothrottle (A/T) provides automatic control of engine thrust from takeoff to touchdown, thus, reducing pilot workload. The autothrottle is a computer-controlled electromechanical system which controls engine thrust within engine design parameters. Throttle position for each engine is controlled to maintain a specific engine thrust (N1) ,or a target airspeed, for all flight regimes. It is designed to operate primarily in conjunction with DFCS (Digital Flight Control System ) and the FMCS (Flight Management Computer System), interfacing also takes place with the IRS and several other systems and components.
　
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