| 摘要 |
FIELD: agriculture, in particular, horticulture. SUBSTANCE: apparatus has casing with protective cover. Casing is made in the form of pyramid with strips arranged in tiers on each face of pyramid. Strips are pivotally connected with one another through tie-rods and positioned in equally spaced relation with one another. Width of strips is greater than or equal to space between strips. EFFECT: increased efficiency in protecting fruit trees from low temperatures and simplified construction. 3 cl, 5 dwg |
