the compass needle points to the MAGNETIC NORTH POLE and by turning the compass in the direction of the line being surveyed, the direction of the line can be observed.
(the line; being surveyed; ) (the direction of the line; can be observed; ) Context(the direction of the line can be observed,List([125, 166))):(the compass needle; points; to the MAGNETIC NORTH POLE and by turning the compass in the direction of the line)
the direction of the line can be observed,List([125, 166))
the line the direction of the line the compass needle
being surveyed can be observed points
to the MAGNETIC NORTH POLE and by turning the compass in the direction of the line