The accuracy of the systematic pressure adjustment proves to be satisfactory.
使系统压力的调节精度达到较满意的效果。
The principle, systematic structure of the storage and measurement system of shock-wave pressure and the calibration and application measurement of the system are introduced.
介绍了冲击波压力存储测试系统的原理、体系结构，对研制的测试系统进行了标定、应用试验。
It is the key study how to make sure the pressure distribution of liquid in the pump barrel and to study the pump valve-ball's movement to improve the systematic efficiency.
对有杆抽油泵泵阀运动规律的研究和确定抽油泵泵阀筒内液体压力的分布是提高抽油机井系统效率研究的关键性课题。
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