| 摘要 |
<p>Measuring system (30) has a flow connection to the pneumatic distribution system (35) and to the tank (20). Distribution system preferably includes a primary distributor (40) with at least one venturi connection with a venturi element for the material being sown, through which an air stream is passed. A venturi pressure plate taps off part of the air stream and supplies it to the tank.</p> |
