曝光臺 注意防騙
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SECTOR, A given distance between two checkpoints in
e flight plan.
ELCAL, SEE - SELECTIVE CALLING
SELECTIVE CALLING, A system that automatically
SELECTOR VALVE, A valve in the hydraulic system for
o one side of the actuator
nd the other side to the return line.
力，
在海平面環(huán)境狀態(tài)（大氣溫度、壓力）下，一臺固定住
的噴氣發(fā)動機所產(chǎn)生的最大推力。
在兩表面間防止空氣或液體泄漏的元件。
航段，
飛行計劃中，兩個檢查點之間的已知距離。
擇呼叫，
見Selective Calling
c
SEAL, A component between two surface
p
th
S
alerts the flight crew to a call from the airline ground
station.
connecting hydraulic supply t
a
海平面靜推
封嚴，
選
.
選擇活門，
端連
回油端的活門。
選擇呼叫， 一個能自動將航空公司地面站呼叫報知機組的系統(tǒng)。
液壓系統(tǒng)中，用于將液壓源一端連接作動簡，另一
接
英漢對照民用航空詞典 B output acontrol. OEING
TECHNICAL DICTIONARY 132
SELF SEALING COUPLING, A connection between twofluid filled hoses for preventing fluid loss when the hoses
rated.
SEMI-MONOCOQUE, Type of construction in which the
SENSOR, An electrical device for detecting variable
ENSOR ACTUATOR, A device for operating the
SERVO, An automatic control system which checks its
gainst its input so as to achieve a desired
MED, Hydraulic pressure for the servo is
resent to allow the servo to internally synchronize to
e proper position, but the mechanical output of the
ervo is not connected.
自封接頭，
活門堵住通道，自動封閉而不
讓液體流出。
半硬殼式結(jié)構(gòu)，
使蒙皮，長桁和隔框共同承受所有載荷的構(gòu)造形式。
感器；
量狀況并將結(jié)果以信號送至指示器和指示燈的
電氣裝置。
傳感器致動器，
。
伺服系統(tǒng)，
能檢查輸出和輸人數(shù)據(jù)，以便合適調(diào)控的自動控制系
統(tǒng)。
伺服預(yù)位，
液壓使伺服系統(tǒng)內(nèi)部同步至適當(dāng)?shù)奈恢茫欧到y(tǒng)的
機械輸出還沒有接通。
are sepa
skin, stringers and frames carry all the loads.
conditions and sending a signal to indicators and lights.
S
sensor.
SERVO AR
p
th
s
用以連接兩個充滿液體的軟管的特制接頭。在兩個管子分開時，接頭內(nèi)的彈簧即使
傳
檢測變
用以操作傳感器的裝置
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 133
SERVO ENGAGED, The mechanical output of the
servo is connected and the servo can move a surface or
ontrol
SET SCREW, A small screw (usually headless) used to
eel, or knob onto a shaft and prevent
tation.
SHEAR, The stress exerted on a material or, assembly
which tends to slide the mating surfaces parallel to each
ther.
SHIMMY, Rapid oscillations (left-right) of the landing
ear wheels.
預(yù)位，
伺服系統(tǒng)的機械輸出與伺服系統(tǒng)已接通，伺服系統(tǒng)可移
動一個平面或操縱。
小螺絲釘（一般是沒有釘頭的）用于將滑輪，車輪，或
鈕緊固在軸輪上被免轉(zhuǎn)動。
c
fasten a pulley, wh
ro
SG, SEE - SYMBOL GENERATOR
o
g
伺服系統(tǒng)
定位螺絲釘，
旋
符號發(fā)生器， 見 Symbol Generator．
剪切力，
加在材料或組件上的應(yīng)力。該力往往導(dǎo)致互相平行的成
對表面滑動。
擺振，
起落架輪子的快速的左右擺動。
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 134
SHIMMY DAMPER, A hydraulic device for damping
shimmy in the landing gear wheels.
ar for
sferring oil from one
chamber to another through a metering valve.
，
一室以減
著陸時產(chǎn)生的沖擊震動的部件。
SHOCK STRUT, A component in the landing geabsorbing landing shock by tran
減擺器，
用以緩沖起落架輪子擺振的液壓裝置。
減震支柱
起落架上通過計量活門將油液從一室轉(zhuǎn)到另
少
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 135
SHORT CIRCUIT, A fault in an electrical circuit
occurring when the power supply goes directly to
ground instead of to an electrical component.
SHORT RANGE ALTITUDE, A cruise altitude chosen to
inimize fuel burn during short trips.
HROUD, A metal covering for enclosing the APU on
e airplane. An external tube for enclosing a fuel hose.
HUTTLE VALVE, A valve in the hydraulic system with
- STANDARD INSTRUMENT DEPARTURE
f the
r access to the components on the engine.
短路，
短程高度，
為在短途飛行中使用最少燃油而選的巡航高度。
護罩，
飛機上包圍著輔助動力裝置的金屬罩。包圍著燃油軟管
用活門，
液壓系統(tǒng)中，具有兩個不同液壓輸人管和一個輸出管
的活門。
標(biāo)準(zhǔn)儀表離場，
見Standard Instrument Departure
m
S
th
S
two different hydraulic supplies and one output to a
component.
SID, SEE
SIDE COWL, A removable cover around the sides oengine fo
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英漢對照詞典(39)
