буйковый датчик уровня(Displacer level sensors use Archimedes' Principle to detect liquid level by continuously measuring the weight of a displacer rod immersed in ... Alexander Demidov)
буйковый датчик уровня(Displacer level sensors use Archimedes' Principle to detect liquid level by continuously measuring the weight of a displacer rod immersed in ... – АД)