紅外探測器有多種用途。Infrared detectors have many uses.報(bào)告主張所有的建筑物都應(yīng)安裝煙火探測器.The report advocated that all buildings be fitted with smoke detectors.它的圓環(huán)是從地球上用望遠(yuǎn)鏡發(fā)現(xiàn)的，但是太空探測器后來又發(fā)現(xiàn)了圍繞其他一些星球的壯觀的圓環(huán)。Its rings were discovered by telescope ...