The plan of the new textbook "Agronomist"with altanka, Yurt.
Echo is & nbsp; and & nbsp; sounder,
In sports practice gives.
Sounder on the ship
Looking for fish, reef on the bottom.
With a depth sounder
Measured in the old days.
The device "sounder". (Wikipedia).
E. Sounder. Agronomist
© Copyright: Раиса Ильинична Гущина, 2020
Свидетельство о публикации №120010303595
Свидетельство о публикации №120010303595
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