Sentence:  In the relatively short time since these early observations , Venus has been observed at additional wave lengths in the <WSD>range</WSD> from 0.8 to 10.2 cm , and Jupiter has been observed over the wave-length range from 3.03 to 68 cm . 
Meaning of the word marked with <WSD> tags:  an area in which something acts or operates or has power or control: "the range of a supersonic jet"