| 摘要 |
a. Method for combating frost, and device for its implementation. b. Device characterised in that it comprises a container 3 containing the powdery protective agent A, an outlet orifice 6 towards the outside, optionally connected to a discharge hose 7, a reserve 5 of neutral gas under pressure and a means making it possible to connect the container 3 containing the powdery protective agent to the neutral gas under pressure in order to project the protective agent towards the outside through the outlet orifice 6. c. The invention applies to combating frost. <IMAGE>
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