| 摘要 |
FIELD: agriculture. SUBSTANCE: chamber is a combination of an even number of trays with magnetic locks arranged to face each other so that they create a magnetic field h+h. A different arrangement (tray to magnetic lock) creates a smaller volume of each single chamber and smaller intensity of the magnetic field (h). The transformation is easy by turning over the trays. It is possible to load the trays with seeds in bulk or packed in paper. EFFECT: convenience in operation. |
