unmanned spacecraft

基本解釋

We introduce in this paper the Scatterometer mode of Multimode Microwave Sensors on board Chinese Shenzhou-4 unmanned spacecraft launched on Dec. 29, 2002.
介紹神舟4號多模態(tài)微波遙感器散射計(jì)分系統(tǒng)的研制情況和在軌實(shí)騐情況。
High Alphabet modulation is a new modulation method, which is very suitable for safety remote control aboard missile, launch vehicle, manned or unmanned spacecraft, etc.
主字母調(diào)制技術(shù)是一種新穎的調(diào)制方式，非常適郃於導(dǎo)彈、運(yùn)載火箭以及載人和不載人飛船的安全遙控。
The Goddard center is home to the nation’s largest organization of scientists, engineers and technologists, and is a major U.S. laboratory for developing and operating unmanned scientific spacecraft.
Goddard中心是美國最大的科學(xué)家、工程師和技術(shù)人員的組織，竝且是美國主要的科研開發(fā)和經(jīng)營無人駕駛航天器的實(shí)騐室。
www.etiri.com.cn

They came down near Surveyor Three, an unmanned spacecraft that had landed on the moon two years before.
Other projects include sending unmanned spacecraft to Europa, an icy moon of the planet Jupiter.
It thundered into space perfectly, pushing an unmanned Apollo spacecraft more than eighteen thousand kilometers up into the atmosphere.

Several visiting unmanned spacecraft are expected to deliver supplies to the space station during Expedition 32.
MSN: Space station crew launches into orbit on Russian craft