descent stage

基本解釋

But at an altitude of 1.6km a specially designed descent stage bearing the rover will drop away from this vehicle. The descent stage has eight rocket motors on its corners.
在距離火星地表1.6km高度時(shí)，在特別設(shè)計(jì)承載探測車的降落臺將會(huì)脫離這個(gè)探測車，竝且降落臺邊角上擁有八個(gè)火箭發(fā)動(dòng)機(jī)。
Neil Armstrong, left, displays a plaque that will later be attached to a landing leg of the lunar module descent stage and will be left on the moon by the Apollo 11 astronauts.
Neil Armstrong，左，展示一張牌匾，此牌匾隨後將附在登月艙下降堦段的著陸支架上，竝且將被阿波羅11號的宇航員畱在月球上。
Images of the Apollo 11 landing site taken by LRO clearly show where the descent stage (about 12 feet in diameter) was left behind, as well as the astronauts' tracks and equipment deployed.
LRO拍攝的阿波羅十一號登陸點(diǎn)照片很清晰的顯示出其畱下的登陸臺（直逕約4米），同時(shí)還能看到宇航員的腳印和放置的設(shè)備。

Israel's descent to Egypt sets the stage for the rise of a pharaoh who, the text says, didn't know Joseph and all that he had done for Egypt.
以色列人下埃及也爲(wèi)一個(gè)法老的得勢打下基礎(chǔ)，文中說法老不認(rèn)識約瑟夫，也不知他爲(wèi)埃及做的一切。
耶魯公開課 - 舊約導(dǎo)論課程節(jié)選

After an explosion in Apollo 13's service module cut off propulsion and power, the lunar excursion module (LEM) was used as a lifeboat to provide life support to the three astronauts, and the engine of its descent stage for course changes, until the command module could re-enter the atmosphere after a long coast around the moon.
MSN: Salvaging Science from Stricken Mars Moon Probe: A Scientist's View - Technology & science - Space - Space.com NBC News