| 摘要 |
<p>The plant for the controlled diffusion of vaporizable active substances in cultivation and in defence against parasites in agriculture consists of a diffuser in the form of ribbon or filament of considerable length, joined at its ends to create an endless closed-circuit line. Said diffuser is able to slide along its path and is driven by traction mechanisms, it being charged with the active substances directly in the field by an appropriate apparatus positioned along the path of the diffuser.</p> |
