TECHNICAL DICTIONARY                                 40

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英汉对照民用航空词典                                   BOEING

DEFUELING VALVE, A valve in the fuel system for    排油活门，

defueling the tanks and for transferring fuel between the 燃油系统中的活门。用以为燃油箱排油和在燃油箱之间

tanks.                                             输送燃油。

DE-ICING, Removing ice after it has formed on aircraft. 除冰，

                                                     除去已凝结在飞机上的冰。

DELETE, To remove or cancel.                       删除，

                                                     删去或取消。

DELTA, Change or difference.                       变量，

                                                     变化或差异。

DEPARTURE CONTROL, A function of an approach       离场控制，

control facility providing air traffic control service for 给用仪表飞行规则离场，和在某种情况下用目视飞行

departing IFR and, under certain conditions, VFR   规则离场的飞机提供空中交通管制服务的进近管制设施

aircraft.                                          的一种功能。

DEMODULATION, The process of retrieving information 解调，

(modulation) voltage from a modulated carrier voltage. 从载波电压中获得调制电压的处理过程。

DEMODULATOR, A device or circuit which performs    解调器，

the process of demodulation.                         完成解调过程的装置或电路。

DEPRESSURIZATION VALVE, A valve in the hydraulic   减压阀，