| 摘要 |
PURPOSE: A marathon training machine which helps a runner to keep the intended speed consistently through the marathon course even without a trainer is provided by an alarming system which beeps at a programmed time interval. CONSTITUTION: A marathon training machine works as follows: turning on a speed adjusting device(4) which has been tuned to a desired time interval, marked with numbers, and rotating an endless type disk(1) or semiconductor chip(1) by using motor(3) to make beep sound that occurs with a set time interval.
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