The change of the atmosphere temperature and the initial time of pipeline shutdown which affect the safety margin of pipeline shutdown is considered in the calculation first time.
计算过程考虑了大气温度变化和起始停输时间点对安全停输时间的影响。
The results of calculation indicate that the safety margin of pipeline shutdown relates not only to the product and the atmosphere temperature, but also to the initial time of pipeline shutdown.
计算结果表明:安全停输时间不仅与油品温度、大气温度有关,而且还与起始停输时间点有关;
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