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TRANSFORMER
M
M
MACH NUMBER, The ratio of the aircra
低空无线电高度表，
一种测量飞机至地形的垂直距离
远程巡航速度，
度
低
见 Low Range ．
线可换件，
见 Line Replaceable Unit
航
．
用于减轻运动物体之间产生的磨擦的物质。它可以是天
的或人工制造的原料。
见 Linear Variable Differential Transformer
润滑剂，
然
线性可变差动变压器，
．
均气动弦，
见 Mean Aerodynamic Chord
平
．
空速与该处音速之比。
马赫数， 飞机真
英汉对照民用航空词典 B OEING
TECHNICAL DICTIONARY 97
MACH TRIM, Correction to airplane attitude (nose up)
during flight at high speed by using the horizontal
tabilizer.
AGNETIC HEADING, The heading of the airplane
lative to magnetic north.
AGNETIC VARIATION (1), The difference between
agnetic and true north.
north.
here is a continuous small change of direction
f lines of magnetic force over the surface of the earth ,
agnetic variation at most locations is not constant over
ng periods of time. Lines of equal magnetic variation
e. (see
tation Declination
s
M
re
M
m
MAGNETIC VARIATION (2), The orientation of a
horizontal magnetic compass with respect to true
Because t
o
m
lo
(isogonics lines) are updated on Jeppesen charts every
five years in accord with worldwide practic
S ).
MAIN ENGINE CONTROL, A component on the engine
ration.
MAIN GEAR, The main wheels with the attachments for
supporting the airplane on the ground.
MAINTENANCE, Work accomplished in support of the
structure and systems of an aircraft. It includes,
inspection, overhaul, repair, preservation and the
replacement of parts.
马赫配平，
用水平安定面对高速飞行中的飞机的俯仰姿态所做的
调整（机头朝上）。
磁航向，
相对于磁北的飞机航向。
磁差（1），
真北与磁北的差别。
断的微量改变，磁偏角在长时间内多数是不一致的。每
五年Jeppesen手册会按照国际惯例校正等磁偏角线（等
差线）。（见基点偏差）
主起落架，
用以在地面支撑飞机的主轮及其附件。
维修，
在保障飞机系统和结构时所做的工作。包括检查，大修，
修理，保养和部件更换。
for controlling fuel flow for starting and engine ope
磁差（2），
相对于真北的水平磁罗盘定位。因为地面的磁力线在作
不
磁
主发动机控制器， 发动机上为发动机起动和运转控制燃油流量的部件。
英汉对照民用航空词典 B OEING
TECHNICAL DICTIONARY 98
MANEUVER CAPABILITY, The ability of the aircraft to
ertain load factor.
MANEUVER MARGIN, The amount of residual
aneuver capability present before the onset of buffet.
MANIFOLD, A duct or chamber with several inlets and
outlets for air or fluid distribution.
the
low of
e flight compartment. On specific
ccasions it will provide conditioned air.
omponent by hand.
MANUALS, Books with instructions for proper
maintenance and operation of the airplane systems.
MANUFACTURED RIVET HEAD, The head of a rivet
that was preformed during its manufacture (see upset
perform certain maneuvers up to a c
m
MANIFOLD INTERCONNECT VALVE, A valve in equipment cooling system for providing a normal frecirculated air to th
o
MANUAL OPERATION, Method of operating a
c
head).
MASS, The quantity of matter in a body. It gives the
body weight when it is exposed to gravity.
机动能力，
飞机完成装载系数达到一特定值的机动动作的能力。
机动性余度，
飞机在遭遇抖振之前，所剩的操纵能力的大小。
总管，
用以空气或液体分布的多进口和多出口的管道或容器。
总管联接活门，
设备冷却系统内的活门。用于向机舱提供正常再循环空
气。在特殊情况下会供给空调空气。
人工操作，
手工操纵部件的方法。
明书。
铆钉头，
在铆钉制造时已定形的铆钉头。（见膨径头）。
质量，
一件物体的物质数量。当该物体受到地球引力时质量产
生重量。
手册， 为能正确地维护和操作飞机系统而编写的说
机械制造的
英汉对照民用航空词典 B OEING
TECHNICAL DICTIONARY 99
MASS MEMORY, A memory that can store large
amounts of information and hold that information
permanently.
AX CLIMB THRUST (MCT), Maximum engine thrust
ximum engine
rust to be used continuously when one engine is
operative.
EOFF THRUST, Maximum engine thrust to be
used during takeoff.
FF WEIGHT, The maximum take off
weight as permitted structural limits or performance
limits, whichever is lower.
RANGE CRUISE (MRC), Cruise speed
ance
to locate
the Center of Gravity.
主控台，
控制系统操作方式的装置或系统。
大爬升推力（MCT），
飞机爬升期间所能用的最大发动机推力。
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英汉对照词典(29)
