苏联科学家在严寒季节来临之际,用泡沫灭火器向果树喷发大量带有小球藻的泡沫,使树枝、树干以及根部上面的土壤全部被泡沫覆盖,严寒使泡沫冻硬,从而起到了防寒作用。处理树,在摄氏零下三、四十度的低温下安然无恙。春天泡沫渐渐融化,流到地上变成了肥料。 Scientists in the cold season approaching the occasion, with a foam fire extinguisher to the fruit trees erupted with a large number of foam with chlorella, so that branches, roots and roots above the soil all covered by foam, frost hard so cold foam, which played a cold. Tree processing, in Celsius minus three, forty degrees low temperature safe and sound. The spring bubble melted and flowed to the ground and turned into fertilizer.