平面: plane; two dimensions; flat ...位置: seat; place; location; site指示: indicate; point out instruct声纳: sonar; acoustic susceptance ...平面位置显示声纳: ppi sonar平面位置指示: plan position indication平面位置指示进场: plan position indication approach平面位置指示雷达: plan-position indicator radar; plane-position indicator radar平面位置指示器: plan position indicator ppi; plan-position indicator; plane position indicator (ppi); plane-position indicator; ppi (= plane position indicator)北点朝上平面位置指示器: north-up plan position indicator等高平面位置指示器: cappi constant altitude plan position indictor电子平面位置指示器: electronic plant position indicator动圈式平面位置指示器: rotating coil plan position indicator方位稳定平面位置指示器: azimuth-stabilized plan position indicator; azimuth-stabilized plan-position indicator扩展式平面位置指示器: expanded plan position indicator碰撞预警平面位置指示器: collision warning pp偏心平面位置指示器: offset-centre plan position indicator平面位置指示扫描器: plan position indicator sca er; plan position indicator scanner三音平面位置指示器: three-tone plan position indicator扇形平面位置指示器: sector plan position indicator随机存取平面位置指示器: rappi random access plane position indicator投射平面位置指示器: projection ppi延迟平面位置指示器: delayed ppi展宽式平面位置指示器: stretched plan position indicator操纵面位置指示器: flight control surface position indicator