我们曾在凌晨2点徒步横穿冰冻的池塘。
We once walked across the frozen pond at two in the morning.
但另一方面，杂货商销售的易腐商品必须保持在冰冻或者低温的条件，而且只能在特定的几个时间点里投递。
Grocers, on the other hand, sell perishable products that have to be kept frozen or cool and that must also be delivered at specific times.
“如果湖面的冰冻持续地更久一点的话，所有的江豚都将死去，”水生生物研究所的郝玉江说。
"If the ice had lasted much longer, all the porpoises would have died," says IHB's Hao Yujiang.
清晨，起早的人惊喜了，这如油的春驱去了寒冰冻雪，浇灌了四野八方，小草拱出了新芽，树枝挂满了绿点。
Early in the morning, get up early surprise people, and this is like spring flooding of oil went cold frozen snow, watered Shino Plus, grass arch out of the bud, branches are covered with a green dot.
防冻剂：降低水之凝固点的物质，能够保护系统免受冰冻之害。
Antifreeze: Any substance that lowers the freezing point of water, protecting a system from the ill effects of ice formation.
于不同时间点，对脑、脊髓及神经节行连续冰冻切片。
Serial sections of the cervical spinal ganglia, cervical and thoracic spinal cord segments and brain were cut on a cryotome.
于不同时间点，对脑、脊髓及神经节行连续冰冻切片。
Serial sections of the cervical spinal ganglia, cervical and thoracic spinal cord segments and brain were cut on a cryotome.
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