The pressure gradient and the difference in temperature between day and night were often the key obstacles to meet the requirement of standard laboratory animal facilities.
梯度压差和日温差是影响实验动物科技设施环境条件达标的关键。
The influence of standard channel flange sealed performance is analyzed in the case of subjected to channel side temperature difference.
分析了管程温差对标准管箱法兰密封性能的影响，并为标准管箱法兰的选用提供了理论依据。
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