如果你所处国家冬天土壤结冰，只需简单在胡萝卜菜地里盖一层树叶或稻草以防止土壤结冰。
If the ground does freeze in your part of the world, simply cover your carrot garden with a thick layer of leaves or straw. This will prevent the ground from freezing.
通过数值模拟，获得了停输期间温度场、流场以及土壤水分结冰界面和管道中原油凝固界面的分布情况。
Temperature and flow fields, and interfaces of water freezing in soil and crude oil solidifying in the pipeline were obtained through numerical simulation.
还要考虑到旱季，雨季土壤成分的区别冬季结冰的地表会影响卫生设施选择。
Account should also be taken of the difference between dry - and wet-season soil conditions. If the ground freezes in winter, the choice of systems may be limited.
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