international air navigation and to foster planning and

development of international civil air transport.

INTERROGATOR, The ground-based surveillance              询问器，

radar beacon transmitter-receiver, which normally scans    一种地面监视雷达信标收发机。通常在工作时与主雷达

in synchronism with a primary radar, transmitting        同步扫描，发射不连续的无线电信号，不断地重复要求与

discrete radio signals which repetitiously request all   其工作方式一致的应答机进行回答。所接收到的回答信号

transponders on the mode being used to reply. The        与主雷达接收到的信号相混合，显示在同一平面位置的雷

replies received are mixed with the primary radar        达屏幕上。

returns and displayed on the same plan position radar

scope.

INTERSECTION,                                            交叉点，

    1. A point defined by any combination of courses,          1.  由航线，径向方位线，或两个以上的助航设备

      radials or bearings of two or more navigational              的方位交会而确定的一点。

      aids.

    2. Used to describe the point where two runways             2.  指两条跑道的，滑行道与跑道，或两条滑行道

      cross, a taxiway and a runway cross, or two                  的交叉点。

      taxiways cross.

INVERTER, An electrical device for changing direct       变流器，

current to alternating current for standby (emergency)       用来将直流电变成交流电；以供电气系统备用（紧急）

power supply to electrical system.                       电源的电气装置。

                                        TECHNICAL DICTIONARY                                      83

----------------------- Page 85-----------------------

英汉对照民用航空词典                                  BOEING

IRS, SEE - INERTIAL REFERENCE SYSTEM              惯性基准系统，

                                                    见Inertial Reference System．