Using finite element method, the thermal and mechanical deformations of herringbone spiral groove mechanical seal are analyzed.
用有限元法分析了人字形螺旋槽机械密封的热变形和力变形。
A simplified method to calculate structure size of herringbone antenna is put forward.
利用简化方法来计算鱼骨形天线的结构尺寸。
With this method, three herringbone wells in the Shengli Oilfield were applied to calculate the productivity, and all the errors were less than 3%.
方法应用于胜利油田3口鱼骨状水平井产能计算，预测误差小于3%；
With this method, three herringbone wells in the Shengli Oilfield were applied to calculate the productivity, and all the errors were less than 3%.
方法应用于胜利油田3口鱼骨状水平井产能计算，预测误差小于3%；
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