Through comparison testing of the surface of reflowing holes of the external-mix self-sucking pump, the best design is determined.
对外混式自吸泵的回流孔面积进行对比试验，确定最佳设计方案。
Through the comparison of various electrochemical protection testing techniques, we find that it is the most accurate in protective electric potential of the casing.
通过对比各种电化学保护测试法，介绍了接触测试法在对套管保护电位测量中的应用。
Through the comparison, An express and effective method of testing the maximum dry density of Rockfill material has been put forward.
通过相互对比，提出了一种快速、合理的方法来确定填石料室内的最大干密度。
Through analysis and comparison of testing data, the one high driving and different diameter rolling have reduced 21-40 percent rolling force and assured the safety of the parts under stress.
通过实验数据分析和比较，单辊传动异径轧制可降低轧制力21—40％，保证了轧机受力零件的安全。
Through analysis and comparison of testing data, the one high driving and different diameter rolling have reduced 21-40 percent rolling force and assured the safety of the parts under stress.
通过实验数据分析和比较，单辊传动异径轧制可降低轧制力21—40％，保证了轧机受力零件的安全。
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