最近几年，与较高温度相关较湿的雪地导致了在这些植物上面形成一层冷冻外壳，而驯鹿却无法打破这层外壳。
The wetter snow associated with warmer temperatures in recent years causes a frozen crust to form over the plants, which the reindeer can't break through.
较系统地研究了湿冶离子交换法生产仲钨酸铵工艺中杂质锡的行为。
Study the action of Sn in the production of APT by ion-exchange of hydrometallurgy.
分子筛用于包装容器中不仅可有效降湿，而且能在相当长时间内保持较干燥、稳定的贮存环境。
The molecular sieve desiccants were used in the packing vessel, not only reduce the humidity obviously, but also maintained a dry and steady storage environment in quite long time.
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