Dictionary of Aviation 航空词典上

时间：2011-02-23 15:18来源：蓝天飞行翻译 作者：航空 点击：次

decal /d.'k.l/ noun picture, letters or digits printed on adhesive paper, which is transferred onto a surface and may be peeled away 0 A red decal with AVGAS 100LL in white letters indicates the type of fuel to be used.
decelerate /di:'sel.re.t/ verb to slow down 0 Reverse thrust and brakes help to decelerate the aircraft after landing.
Opposite accelerate deceleration /di:，sel.'re.. (.)n/
noun slowing down 0 Anti-skid braking systems units are designed to prevent the brakes locking the wheels during landing, thus reducing the possibility of wheel skid caused by the sudden decel-eration of the wheel. Opposite acceler-ation
decibel /'des.bel/ a unit for measuring the loudness of a sound. Abbreviation dB
decimal /'des.m(.)l/ noun a decimal fraction _ adjective口 decimal fraction a fraction as expressed in the decimal system 0 0.50 is a decimal fraction that is equal to 1/2.口 correct to three places of decimal or to three decimal places correct to three figures after the decimal point 0 2.754 is correct to three decimal places, 2.7 is correct to one decimal place.
decimal notation /，des.m (.)l n.υ 'te..(.)n/ noun the method of writing a number in the decimal system 0 The fraction 3/4 can be written as 0.75 in decimal notation. 0 Prices and number are normally written using decimal notation. 0 He finds it difficult to under-stand how the computer works because it uses binary not decimal notation.
decimal place /，des.m (.)l 'ple.s/
noun the position of a number to the right of the decimal point
decimal point /，des.m (.)l 'p..nt/
noun the dot (.) used to separate a whole number from a decimal fraction
COMMENT: The decimal point is used in the USA and Britain. In most European countries a comma (,) is used to show the decimal, so 4,75% in Germany is written 4.75% in Britain.
decimal system /'des.m(.)l，s.st.m / noun system of counting based on the number 10 and using the digits 0 – 9
decision /d.'s.3(.)n/ noun the act of deciding or of making up one’s mind口 to make a decision to choose a course of action 0 The decision to evacuate the aircraft was made by the captain.

decision height /d.'s.3(.)n ha.t/
noun the altitude at which, during an ILS landing approach, a pilot must decide whether to land or carry out a missed approach 0 The pilot waited until she was at decision height before initiating the missed approach proce-dure. Abbreviation DH
COMMENT: An ILS approach generally has a decision height of 200 ft (60 m) above ground level.
deck /dek/ noun the floor of a ship or aircraft

decode 66
decode /dik.υd/ verb to change coded information into readable form .
Incorrectly spaced information pulses can result in failure by the ground sta-tion to decode the aircraft information.
decoder /dik.υd./ noun a device used to decode signals from the air traf-fic control radar beacon system . The aircraft receiver is set to the required frequency and linked to a selective call system decoder which has a 4-letter code.

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