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INERTIAL REFERENCE SYSTEM, A self-contained,           慣性基準(zhǔn)系統(tǒng)，

navigational system based on the measurement of          以測(cè)量飛機(jī)的加速和姿態(tài)為基礎(chǔ)的獨(dú)立導(dǎo)航系統(tǒng)。

acceleration and attitude.

INFLIGHT PERFORMANCE, The performance of the           空中性能，

aircraft while enroute.                                  飛行中飛機(jī)的性能。

INITIAL APPROACH FIX (IAF), The fix which identifies   起始進(jìn)近定位點(diǎn)（IAF），

the beginning of the approach to an airport.             標(biāo)志向著陸機(jī)場(chǎng)進(jìn)近開(kāi)始的定位點(diǎn)。

INLET GUIDE VANES, A fixed set of blades in front of   進(jìn)口導(dǎo)向葉片，

an engine compressor for directing airflow to the        發(fā)動(dòng)機(jī)壓氣機(jī)前的一組固定葉片，用以引導(dǎo)氣流進(jìn)人壓

compressor.                                            氣機(jī)。

INNER LOOP CONTROL, For autopilot operation this is    內(nèi)環(huán)路控制，

the basis control of airplane pitch and roll attitude    對(duì)于自動(dòng)駕駛儀操作，這是無(wú)關(guān)飛行航道的飛機(jī)俯仰姿

without regard to flight path.                         態(tài)和坡度的基本控制。

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INNER MARKER, A marker beacon located between            近指點(diǎn)標(biāo)，

the middle marker and the end of the ILS runway.           位于盲降跑道頭和中臺(tái)之間的信標(biāo)臺(tái)。

INOP, SEE - INOPERATIVE                                  不工作的，