Degree e below zero 零下度数
If the temperature drops below zero degree, water will turn into ice.
如果气温降到零度以下，水就会结冰。
Especially when construction in winter, climate specially cold, outside the temperature below zero degree Celsius, the new constructed fire proofing coating is all easy to ruin by freezing.
特别是在冬季施工时，气候特别寒冷，室外气温都在零摄氏度以下，新施工的防火涂料极易冻坏。
Objective To show the effects of different methods on preservation of cord blood hematopoietic cells below zero degree.
目的探讨不同冻存方法对脐血造血细胞的影响。
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