In the paper, the formula of economic friction factor for hydronic heating system with intermediate boosting pump station and different laying mode is derived theoretically.
本文从理论上推导出带中间增压泵站、有不同敷设方式的热水供热网经济比摩阻的计算公式。
In the course of running of high-power magnetic driven boosting water injection pump, the magnetism of the permanent magnet may vanish at high temperature.
针对大功率磁传动增压注水泵在使用过程中存在的永磁体高温失磁等问题，分析了磁力传动器损坏的主要故障原因。
Because of superior performance of helical axial-flow multiphase pump, multiphase boost technology has taken the developing position for liquid-gas boosting technology recently.
多相混输技术是当今油气输送技术的发展趋势，而螺旋轴流式多相泵应用于油气水多相混输具有良好的性能。
Smaller does not mean less performance: the pump achieves the necessary oil volume and boosting outputs.
小并不意味着性能差，该泵将满足油量及输出量的要求。
Smaller does not mean less performance: the pump achieves the necessary oil volume and boosting outputs.
小并不意味着性能差，该泵将满足油量及输出量的要求。
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