jack post是什么意思

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用法例句

This paper gives the least squar method to caculate the centres and radii of coaxial pillar electrode's equipotential circles,and also gives the data processing programme in Basic Canguage.

本文指出了用最小二乘法求解同轴柱形电极电位分布同心圆的圆心和各等位圆半径的方法及相应的用Basic语言编写的数据处理程序。

A theoretical analysis of composite interphase model composed of threephase coaxial cylinders is developed and the work done by Theocaris et al is improved in this paper.

本文改进了Ｔｈｅｏｃａｒｉｓ等的工作，进行了三相同轴柱体复合材料界面模型的理论分析。

For improving the spray performance and making it meet the requirements of working in an orchard,a modification that a cone-shaped air duct and a columnar air duct were installed to replace the original air outlet of the air duct of a conventional air-assisted sprayer was made.

为改善风送式喷雾机的飘移性能,为原有喷雾机的出风口设计安装一个锥形导风筒和一个同轴柱形导风筒。