Sentence:  The observed intensity of the radio emission of Venus is much higher than the expected thermal intensity , although the spectrum indicated by measurements at <WSD>wave</WSD> lengths near 3 cm and 10 cm is like that of a black body at about 600 ` K . 
Meaning of the word marked with <WSD> tags:  the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave