英汉对照词典(39)

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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，
在海平面环境状态（大气温度、压力）下，一台固定住
的喷气发动机所产生的最大推力。
在两表面间防止空气或液体泄漏的元件。
航段，
飞行计划中，两个检查点之间的已知距离。
择呼叫，
见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
海平面静推
封严，
选
.
选择活门，
端连
回油端的活门。
选择呼叫， 一个能自动将航空公司地面站呼叫报知机组的系统。
液压系统中，用于将液压源一端连接作动简，另一
接
英汉对照民用航空词典 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.
自封接头，
活门堵住通道，自动封闭而不
让液体流出。
半硬壳式结构，
使蒙皮，长桁和隔框共同承受所有载荷的构造形式。
感器；
量状况并将结果以信号送至指示器和指示灯的
电气装置。
传感器致动器，
。
伺服系统，
能检查输出和输人数据，以便合适调控的自动控制系
统。
伺服预位，
液压使伺服系统内部同步至适当的位置，但伺服系统的
机械输出还没有接通。
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
用以连接两个充满液体的软管的特制接头。在两个管子分开时，接头内的弹簧即使
传
检测变
用以操作传感器的装置
英汉对照民用航空词典 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.
预位，
伺服系统的机械输出与伺服系统已接通，伺服系统可移
动一个平面或操纵。
小螺丝钉（一般是没有钉头的）用于将滑轮，车轮，或
钮紧固在轴轮上被免转动。
c
fasten a pulley, wh
ro
SG, SEE - SYMBOL GENERATOR
o
g
伺服系统
定位螺丝钉，
旋
符号发生器， 见 Symbol Generator．
剪切力，
加在材料或组件上的应力。该力往往导致互相平行的成
对表面滑动。
摆振，
起落架轮子的快速的左右摆动。
英汉对照民用航空词典 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.
，
一室以减
着陆时产生的冲击震动的部件。
SHOCK STRUT, A component in the landing geabsorbing landing shock by tran
减摆器，
用以缓冲起落架轮子摆振的液压装置。
减震支柱
起落架上通过计量活门将油液从一室转到另
少
英汉对照民用航空词典 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，
为在短途飞行中使用最少燃油而选的巡航高度。
护罩，
飞机上包围着辅助动力装置的金属罩。包围着燃油软管
用活门，
液压系统中，具有两个不同液压输人管和一个输出管
的活门。
标准仪表离场，
见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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