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Dictionary of Aviation 航空词典 下

时间:2011-02-23 15:20来源:蓝天飞行翻译 作者:航空 点击:


rise /ra.z/ noun 1. an increase . a rise in temperature 2. . to give rise to to cause . Hills and mountains may give rise to particularly severe turbulence. . verb 1. to move upwards . air rises 2. to increase . The temperature is rising. .
raise
risk /r.sk/ noun the possibility of suf-fering harm or injury, danger . When starting an engine, it is bad practice to pump the throttle lever as there is a risk of fire in the carburettor air intake. .
verb to take a dangerous chance . to risk the lives of passengers to put the lives of passengers in danger by taking a particular course of action
rivet /r.v.t/ noun a type of metal bolt or pin with a head on one end, inserted through one of the aligned holes in the parts to be joined and then compressed on the plain end to form a second head
. Tensile or compressive loading makes the joined materials tend to slide and break the rivet or bolt. . verb to join with rivets . The skin is riveted to both stringers and frames.
RMI abbreviation radio magnetic indi-cator
RNAV abbreviation area navigation robot pilot /r.υb.t pa.l.t/ noun same as autopilot
rocker arm /r.k. ɑm/ noun part of the valve mechanism in an internal combustion engine, which transmits the movement of the pushrod to the valve
rod /r.d/ noun a thin straight piece of metal . Aluminium rods and bars can readily be employed in the high-speed manufacture of parts.
rogallo /r.l.υ/ noun a fabric-cov-ered delta-shaped wing that can be folded compactly, used on ultralight air-craft
role /r.υl/ noun function . Movement of air plays a major role in the develop-ment of weather patterns. . the role of the aircraft the type of operation the aircraft is required to perform
roll /r.υl/ noun 1. a rotation about the longitudinal axis of the aircraft, created by movement of the ailerons . Roll is produced by moving the stick to the left or right. . bank 2. a flight manoeuvre
with 360° rotation about the longitudi-nal axis of the aircraft . Loops and rolls are aerobatic manoeuvres. . verb to rotate the aircraft around its longitudi-nal axis . Move the control column to the left to roll the aircraft to the left. . to roll into a turn to roll or bank the air-craft so that it turns left or right . By rotating the yoke the ailerons are moved and the aircraft rolls into a turn.
COMMENT: The difference between roll and bank is that roll is movement whereas bank suggests a fixed attitude of the aircraft. Consequently, a turn might be expressed in angles of bank: turn at a bank angle of 30°, and the movement to obtain the bank might be expressed as roll: roll the aircraft to the left.
roll cloud /r.υl klaυd/ noun cloud created in the rotor zone on the down-wind side of mountain ranges
roller /r.υl./ noun a cylindrical metal device which rotates . The most com-mon bearings used in gas turbine engine are the ball or roller type.
RON abbreviation remain overnight
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