по прямой
см. тж. двигаться по прямой; перегибаться по прямой
• The particle moves as a crow flies (разг.).
• The chain pitch is measured on a straight line between the centres of adjacent pins.
• The satellite model was moving in a straight line over a stationary Earth.
• The particle moves in (or along) a straight line.
Источник:
Русско-английский научно-технический словарь
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