The ratio of vertical and horizontal predominant period is 0.7-0.9, so independent characteristic period of vertical design response spectrum should be defined.
竖向与水平向地震动分量卓越周期的比值在0.7 - 0.9之间，竖向设计反应谱的特征周期应有单独规定。
The method to estimate cavitation characteristic by analyzing impingement angle at the groove on porting plate of an axial plunger pump is put forward during design process period.
对柱塞泵设计过程中的空蚀特性，提出一种通过分析减压槽出口处的射流方向来评价高压轴向柱塞空蚀特性的方法；
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