复数： generatrices

Researching the single fluid flowing can offer certain theoretical foundation to the arrangement of generatrix and electrode .

研究槽内单纯的流体流动，对母线和电极的排列方式可以提供一定的理论依据。

The forms of generatrix and directrix , and the way of generatrix slides along the directrix would seriously affect the working resistance of soil cultivating component .

构成耕作部件宏观触土曲面的元线、准线及元线相对于准线的运动方式均会对工作阻力产生重要影响。