This orbiting telescope is the largest optical instrument in space.這種軌道望遠(yuǎn)鏡是宇宙中最大的光學(xué)儀器.Let's pretend we're on the spaceship orbiting round the earth!讓我們假裝是在沿軌道繞地球運(yùn)轉(zhuǎn)的宇宙飛船上!Twenty incoming flights were stacked up ...
a linkup of two orbiting spacecraft.軌道上兩個(gè)太空飛行器的會(huì)合They have docked a robot module alongside the orbiting space station...他們已經(jīng)將一個(gè)自動(dòng)操作艙與沿軌道運(yùn)行的空間站并行對接上了。Let's pretend we're on the spaceship orbiting round the earth...