Key Words and Phrases:
advance (v) abbreviation (n)
improve (v) detection (n)
range (n) locate (v)
achievement (n) location (n)
distance (n) incredible (adj.)
accuracy (n) reflect (v )
target (n) altitude (n)
invisible display (v)
cathode-ray tube (n) ground-based radar
data (n) broadcast (v)
I. Answer the following questions:
What does the word “radar” mean?
What are the improvements introduced into modern world?
In what manner was the usefulness of radar expanded?
What are the peaceful uses of radar?
What are the basic principles of radar equipment?
What is radar used for?
What does radar consist of?
In what direction can radio energy be broadcast?
How is it possible to determine the exact location of a target?
Where are the data obtained displayed?
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