winterizing
果树防冻十法 Hebei Agricultural Science and Technology
身体锻炼法：这是预防冻疮的最佳办法，通过身体锻炼而提高肌体对寒冷的适应能力。
Physical exercise Method: This is the best way to prevent frostbite, physical exercise and improve the body's ability to adapt to the cold.
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