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48 部分包括輔助動力裝置和水平安定面桁架。可以通過左側(cè)口蓋接
近。在它們的后面是APU 檢修口和APU 排氣口。
(7) The 737-300 is the same basic design as the 737-200, with a body stretch
of 104 inches, a wing tip extension of 14 inches, a horizontal tail extention
of 36 inches, a larger dorsal fin and strengthened stabilizer.
737-300 與737-200 具有相同的基本設(shè)計，機體伸長了104 英寸，翼
尖延伸了14 英寸，水平尾翼延伸了36 英寸，還多了個大的脊鰭和增
強的水平尾翼。
(8) The 737-400, relative to the 737-300, has body stretch of 120 inches, tow
additional overwing exit, tail skid, and strengthened landing gear.
737-400 與737-300 相比較，機身伸長了120 英寸，多了兩個逃生出
口，尾部滑軌及加強了起落架。
(9) The 737-500 uses the 737-300 basic structure with a 94 inches shorter
body and a revised forward and aft fairing (wing to body).
737-500 使用了737-300 的基本結(jié)構(gòu)，機身短了94 英寸，并且修改了
前后整流罩（機翼到機體）。
LESSON 2 THE PNEUMATICS SYSYTEM 增壓系統(tǒng)
一、生詞
目的Purpose 壓縮空氣compressure Air 壓縮空氣pneumatic
環(huán)境Environment 階段，相位Phase 得到Obtain
發(fā)動機引氣Engine bleed 外部的External 車Cart
接頭Connector 整流罩Cowl 熱的Thermal
防冰Anti-icing 也，此外Also 提供provide
飲用水Potable water 液壓的Hydraulic 啟動器Starter
在…之內(nèi)Within 正常的Normal 取代Substitute
滿足Meet 需要，要求Need 上部、頂部Top
圖形Figure 絕緣Isolation 活門Valve
管道Duct 結(jié)合、連接Join 交叉、跨接crossover
管理、調(diào)整govern 適當?shù)腶ppropriate
二、TEXT
(1) the purpose of the pneumatic sysytem is to supply compressed air for a
controlled temperature and pressure environment during all phases of
flight and ground operation .air is obtained from engine bleeds. APU、or
from an extermal ground cart through a connector located on the fuselage.
增壓系統(tǒng)的作用是為飛行及地面所有階段的溫度和壓力控制提供壓
縮空氣。壓縮空氣的來源可以是發(fā)動機引氣、APU、或通過機身上的
連接頭與地面氣源車相連供氣。
(2) The pneumatic system controls the temperature and the pressure of engine
bleed air source. The pneumatic system provides high temperature, high
pressure air for the air conditioning .pressurization, wing and cowl
thermal anti-icing .also, the pneumatic system provides pressure for the
potable water system, hydraulic system and engine starters. The engine
bleed air systems are located on the engine and within the support strut.
增壓引氣控制發(fā)動機引氣的溫度和壓力。增壓系統(tǒng)為空調(diào)、增壓系統(tǒng)、
機翼及整流罩熱防冰系統(tǒng)提供高溫、高壓引氣。同時，增壓系統(tǒng)還給
飲用水系統(tǒng)、液壓系統(tǒng)和發(fā)動機起動系統(tǒng)提供壓力。發(fā)動機引氣系統(tǒng)
位于支架內(nèi)部發(fā)動機上。
(3) The normal cabin air source is obtained from the 5th-stage of the engines
at low –engine power, 9th-stage air automatically substitutes to meet user
system needs.
正常情況下，客艙空氣來自于發(fā)動機低能量的第5 級，9 級空氣自動
分配以滿足用戶系統(tǒng)的需要。
(4) On the top of figure 2-1, the isolation valve separates the left and right
halves of the system. On the left side of the isolation valve, the APU bleed
air duct joins the left side crossover duct; on the right side ,the pneumatic
ground service connector joins the right side crossover duct. From these
ducts the user system are supplied with pressurized air ,governed by the
appropriate control valves.
在圖2-1 的上方，隔離活門將左右系統(tǒng)分隔成獨立的兩部分。在隔離
活門的左邊，APU 引氣管道立連接著左交輸管道；在右邊，壓縮空
氣地面接頭連接右交輸管道。用戶系統(tǒng)可以從這些管道獲得壓縮空
氣，通過適當?shù)目刂苹铋T進行控制。
LESSON 3 AIR CONDINTION 空調(diào)系統(tǒng)
一、單詞
空氣調(diào)節(jié)Air conditioning 環(huán)境Ambient 機組Crew
加熱heat 冷卻Cool 增壓pressurization
引出，放出Bled 總管道Manifold 分離Seprate
獨立的indenpendent 冷卻組件Cooling pack 調(diào)節(jié)，管理regulate
暖，熱Worm 減少Reduce 期望Desire
渦輪冷卻器Air cycle machine 整的Integral 包括Consist of
共同的Common 軸Shaft 離開Leave
膨脹V Expand 膨脹N Expansion 下降Drop
零下Sub-zero 分配Distribute 此外In addition
配平空氣管道Trim air line 混合Mix 室、容器Chamber
加上，增加Add 頭頂上Overhead 豎管Raise
收集器Collector 防護罩Shroud 過濾器Filter
排出口discharge 再分配Redistribute 二等分halve
二、TEXT
(1) the air conditioning system provides a conditioned air environment for the
passengers and crew , heats the cargo compartment, cools the electronic
equipment, and supplies air for the pressurization system.
空調(diào)系統(tǒng)為旅客和機組提供環(huán)境溫度的控制，為客艙供熱，為電子設(shè)
備艙降溫，還有為增壓系統(tǒng)提供空氣。
(2) Air is bled from the pneumatic manifold and conditioned by 2 separate
and independent cooling packs. Air flow into the packs is regulated by the
pack valves.
空氣從增壓主管道和空調(diào)中通過2 個隔離的，相互獨立的冷卻組件中
　
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