夜や間かん着ちゃく陸りく訓くん練れんMeanings1nounnight landing practice; NLPMilitary/aviation term for training in landing aircraft at night. Often abbreviated as NLP.パイロットは夜や間かん着ちゃく陸りく訓くん練れんを定てい期き的てきに行おこなう。Pilots regularly conduct night landing practice.