First is the theoretical calculation and the analysis.
第一是理论计算及分析。
Track test proves that the theoretical calculation is correct.
线路试验结果证明理论计算是正确的。
The theoretical calculation is found to agree with the test result.
计算结果与已有试验结果吻合良好。
The experimental results of phase shift agree with the theoretical calculation.
相移实验表明理论计算与实验结果吻合。
The theoretical analysis and calculation show it is an effective method.
理论分析和数值计算表明，该方法是切实可行的。
Analysis and calculation results provide the theoretical guidance and reference to the actual construction.
分析计算结果为实际施工提供了理论指导和参考。
The second step is theoretical calculation of energy losses.
第二步是进行线损理论计算。
Theoretical calculation in this paper is useful for the design of the air button battery.
本文中提供理论计算方法对扣式空气电池的设计具有实用意义。
Data of the test are valuable and useful for theoretical calculation and reactor operation.
为验证理论计算和反应堆运行提供了有价值的参考数据。
Experiment shows that the difference between theoretical calculation and experimental result is not great.
试验表明：理论计算与试验结果相差不大。
Experiment shows that the difference between theoretical calculation and experimental result is not great.
试验表明：理论计算与试验结果相差不大。
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