短語詞組短語approaching flow system 淌迎體系approaching landing system 進(jìn)近著陸系統(tǒng)Train Approaching Alarm System 列車接近報警系統(tǒng)the approaching landing system 進(jìn)近著陸系統(tǒng)approaching and landing system 著陸導(dǎo)引 返回 approach system