plane symmetry meaning in English

平面对称

By means of discussing plane symmetry that relates to point , curved surface and curve in a three - dimensional space , this paper gives a method to study point 、 curved surface 、 plane symmetric point on a curve 、 symmetric curved surface and symmetric curve equation
摘要讨论了三维空间中，点、曲面、曲线关于平面的对称问题，从而给出了求点、曲面、曲线关于平面对称的对称点、对称曲面、对称曲线方程的方法。
Freezing efficiency of f atom in oxidant nozzle of different contour walls , mixing mechanism of reactants in 2slot ( two - dimensional , plane symmetry nozzle ) nozzle and comparison of flow - fields & ssg between 2slot and 3slot ( 3 - slit jet plane nozzle ) have been studied by using 2d cr program . the conclusion is significant to understand the requirement of reactant flows and to generate ideas for nozzles design
利用二维r程序，研究了单喷管型面对f原子冻结效率等参数的影响：研究了二维平面对称喷管（ 2slo ）的反应流混合机制和混合角对激光器性能的影响；对比研究了zslot和三狭缝平面对称喷管oslot ）流场和增益特征。