曝光台 注意防骗
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system. Clacker 2 receives an input from the CAPT mach airspeed
warning system. The BELL receives an input from the fire warning
system. The input causes a multivibrator circuit to ring the bell at a rate
of 60 times per second.
Questions to Lesson 45:
1. When will the aural warning system provide audio signals to alert the
flight crew ?
2. If SELCAL is not installed, why is flight crew required to monitor the
heavy communication traffic ?
3. For SELCAL operation, what is assigned to each airplane ? what
does each letter correspond to ?
4. How does the ground station call an individual airplane ?
5. What does the aural warning system consist of ?
6. Why does the monitor circuits interface with the airplane systems ?
7. What does the aural warning devices unit contain ?
8. How many systems does the aural warning system interface with ?
9. How many aural warning devices are in the aural warning devices
unit ? What are they ?
10. Does module A1 contain the chime, wailer, intermittent horn, and
steady horn circuitry ?
11. With the aid of figure 45-3 , where does the HI chime circuit receive
an input from ? Where is the output of the HI chime circuitry sent to ?
12. According to figure 45-3, where does the HI-LO chime circuitry
receive an input from ? How many seconds does LO chime lag HI
when they reach the speaker ?
13. Where does the steady horn circuit receive an input from?
14. With the help of figure 45-3, where is the output of the horn
oscillator sent to before being applied to the speaker ?
15. Where does the intermittent horn circuit receive input from?
16. Who receives an input from the DFCS ? Is this input sent to the horn
oscillator and a modulator circuit at the same time ?
17. Where does clacker 1 and clacker 2 receive input from ?
EXERCISE
A. Translate Paragraph 1, 2, 5, 6, 7 and 8 of Lesson 45 into Chinese.
B. Explain the following abbreviations and acronyms.
1. SELCAL
2. ELEX
3. HI
4. LO
5. F/O
6. PWR
7. BAT
8. OSC
9. REG
10. SEC
C. Answer the questions to Lesson 45.
ESSENTIAL（基础） ENGLISH OF
AERONAUTICAL ENGINEERING
航空工程英语基础
LESSON 1 THE B737 FUSELAGE 机体
一、生词
飞机Airplane 半硬壳式Semi-monocoque 机身Fuselage
起落架Landing gear 动力装置Power plant 支柱Strut
分为Divide into 包括Contain 天线Antenna
玻璃纤维Fiberglass 蜂窝状物Honeycomb 整流罩Fairing
铰链Hinge 压力密封隔
板
Bulkhead 驾驶舱flight
compartment
进口Entry 机上厨房Galley 登机梯Airstair
电子设备舱Electronic
equipment bay
检修口Access door 旅客舱Passenger
cabin
货舱Cargo 逃逸Escape 舱口Hatch
空间Space 燃油箱Fule bank 终止Terminate
辅助动力装置Auxiliary power
unit
水平安定面Horizontal
stabilizer
桁架Truss
排出Exhaust 设计Design 和…一样The same as
伸长stretch 延伸Extension 脊鳍Dorsal fin
增强Strengthen 相对于Relaviate to 滑轨Skid
结构structure 修改revise
二、TEXT
(1) the B737 is a low wing airplane. B737 has semi-monocoque fuselage and
fully retractable landing gear. Two power plants are located under the
wings on short struts.
波音737 是一种下单翼飞机。它拥有半硬壳式机身和全收式起落架。
两台发动机位于机翼下方短支架上。
(2) The 737-300 fuselage is divided into four sections: section 41 , section
43 , section 46 and section 48 .
波音737 机体为为四部分：41、43、46 和48.
(3) Section 41 contains the radar antenna behind a fiberglass honeycomb
fairing, hinged at the top. aft of the pressure bulkhead, above the floor, are
the flight compartment and forward airstair and its door, and the electronic
equipment bay .this section has two lower access doors.
41 部分包括铰接在蜂窝状玻璃纤维雷达罩后面顶部的雷达天线、压力
隔板后方及地板上方区域是驾驶舱和前登机梯及其门，还有电子设备
舱。这部分有两个下检修口。
(4) Section 43 contains the passenger cabin and the forward cargo
compartment.
43 部分包括客舱和前货舱。
(5) Section 46 contain the center and aft portion of the passenger cabin ,two
overwing escape hatches and aft entry and service doors. The space below
the floor includes the wing center section (fule tank), air-conditioning
bays, wheel well, hydraulic bay and aft cargo compartment. this section
terminates at the aft pressure bulkhead.
46 部分包括客舱中后部，两个逃生舱及入口和服务门。地板下的空间
包括中央油箱、空调舱、轮舱、液压舱和后货舱。这部分终止于后压
力隔板。
(6) Section 48 contains the auxiliary power unit(APU) and horizontal
stabilizer truss. Access to this section is through a door on the left side. Aft
of which is the APU access door and APU exhaust.
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航空工程英语基础（中英文对照）(79)
