periapsis

美 [?per?'æps?s] 　英 [per?'æps?s]

• n.〔天〕近拱點(diǎn)
• 網(wǎng)絡(luò)近心點(diǎn)；近質(zhì)心點(diǎn)；近地點(diǎn)

詞形變化

復(fù)數(shù)：periapsides  

英漢解釋

n.	1. 〔天〕近拱點(diǎn)

英英解釋

n.	1. the point in an orbit that is nearest to the center of gravitational attraction

例句

Now thrust could be generated (for "free" again) at periapsis, progressively increasing the altitude of apoapsis .

這時(shí)可以「免費(fèi)」在近心點(diǎn)產(chǎn)生推力，漸漸將遠(yuǎn)心點(diǎn)的高度提升。

The repeated thrust applications at apoapsis would raise periapsis from inside to outside the stationary orbit.

重復(fù)在遠(yuǎn)心點(diǎn)施以推力，會(huì)將近心點(diǎn)由同步軌道內(nèi)提升到同步軌道外。

periapsis in orbit around the moon .

以月球為中心的軌道的最近點(diǎn)。