短語詞組短語landing g field 停機坪alternative landing field 備降場Landing field elevation 著陸機場標高;飛機起飛降落場海拔高度NLF Nearest Landing Field 最近降落機場a landing field 飛機場emergency landing field 迫降場;緊急降落場advanced landing field 前進著陸場;前方臨時機場main landing field 主著陸場advance landing field 前進起降場 返回 landing field