磨损和维护费用。

ATC, SEE - AIR TRAFFIC CONTROL                         空中交通管制，

                                                         见Air Traffic Control．

                                      TECHNICAL DICTIONARY                                    13

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英汉对照民用航空词典                                     BOEING

ATE, SEE - AUTOMATIC TEST EQUIPMENT                   自动测试装置，

                                                        见Automatic Test Equipment．

ATMOSPHERIC PRESSURE, Pressure of air due to the      大气压力，

earth's atmosphere, expressed in pounds per square      由于地球周围的大气而产生的空气压力，以每平方寸多

inch (psi) or inches of mercury (in Hg) or millibars (mB). 少磅（psi）或多少寸高水银柱（in Hg）或毫巴（mB）来

                                                      表示。

ATTITUDE, The relative orientation of the airplane with 飞机姿态，

respect to pitch, roll, and yaw.                        飞机与俯仰，坡度，和偏航有关的相对方向。

AUDIO CONTROUSELECTOR PANEL, The panel in             音频选择面板，

the airplane which controls and selects the routing of  飞机内用来控制和选择音频通路的面板。

audio.

AUTOLAND, Automatic landing using the Digital Flight  自动着陆，

Control System.                                         使用数字式飞行操作系统来进行自动着陆。