The pentahedral bicharacteristic curve grid can be applied to investigate the thrust misalignment characteristics in a unsteady flow.

证体双特徵曲线网格方法可用来研究非定常流条件下的推力偏心特性。

A method is also presented for calculating the side area and volume of critical rocks with arbitrary pentahedron as example.

以任意体为例,介石侧积、积的计算方法。