Once we have an accurate clock, we can then measure distance using light or radar signals reflected from the distant object;
(we; have; an accurate clock) (light or radar signals; reflected; from the distant object) (we; can measure; distance; T:Once we have an accurate clock; T:then) Context(we can measure,List([32, 51))):(we; can measure distance using; light or radar signals reflected from the distant object)
we can measure,List([32, 51))
we light or radar signals we we
have reflected can measure can measure distance using
an accurate clock
from the distant object
distance T:Once we have an accurate clock T:then
light or radar signals reflected from the distant object