| 摘要 |
2839 The inserts (5), which are bag-shaped, are connected to one another so that the quantity of fluid remains the same in both of them on filling and opening. Between the inserts is a space (8) for granular material, the size of which is in inverse ratio to the amount of fluid in the inserts. The fluid, brine or water, and the granular material, salt, is fed from the container (1) in controlled quantities to a device for spreading it over a road surface for Winter surface treatment. |
