常見例句Periapsis in Earth orbit,the point in its orbit where a satellite is nearest to the Earth. 以地球?yàn)橹行牡淖罱c(diǎn),人造衛(wèi)星軌道上離地球中心最近的點(diǎn)。The angular distance of a point in an orbit past the point of periapsis measured in degrees. 穿過用角度來測(cè)量的進(jìn)拱點(diǎn)的一個(gè)軌道里的某點(diǎn)的角距離。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。As the spacecraft went around and around Jupiter, mission controllers would turn on the tether near periapsis to produce drag( and usable power) and turn it off elsewhere. 隨著太空船一遍遍地繞行木星,任務(wù)控制者將在近心點(diǎn)附近啟動(dòng)纜索以產(chǎn)生拖曳力(可用能量)并在其他地方關(guān)閉它。As the spacecraft went around and around Jupiter, mission controllers would turn on the tether near periapsis to produce drag (and usable power) and turn it off elsewhere. 隨著太空船一遍遍地繞行木星,任務(wù)控制者將在近心點(diǎn)附近啟動(dòng)纜索以產(chǎn)生拖曳力(及可用能量),并在其他地方關(guān)閉它。According to the principles of orbital dynamics, the most efficient places to apply drag or thrust are the points in the orbit nearest (periapsis) and farthest (apoapsis) from Jupiter. 根據(jù)軌道動(dòng)力學(xué)的原則,施加拖曳或推進(jìn)力最有效率的位置是軌道中最靠近及最遠(yuǎn)離木星的點(diǎn)(分別為近心點(diǎn)與遠(yuǎn)心點(diǎn))。 返回 periapsis