詞語:perilune
perilune的同義詞
n. periselene
perilune的反義詞
n. apolune ,aposelene
perilune的解釋
perilune['perə,lju:n]n. [天]近月點
perilune的意思
perilune 近月點;first braking at perilune 首次近月制動;
perilune的參考例句
1.Atp perilune the landing thruster is ignited, and a propulsive landing is performed. 當到達近月點時,著陸制動發動機點火,開始動力下降階段。
2.The first orbit maneuver of lunar orbit insertion (LOI) must be implemented at the first perilune of the spacecraft flight to the moon. 月球捕獲控制第一次制動必須在衛星飛向月球的第一近月點完成。
3.The satellite braked when it arrived at the perilune –the point on an elliptical lunar orbit that is nearest to the moon -- around 11:15am today so that it could be captured by the moon's gravity. 衛星在到達近月點時——橢圓形月球軌道最靠近月球的一點——11點15分左右剎車讓它能被月球引力捕獲。