A certification method to the relationship between polhode cone and herpolhode cone is given when the rigid body is in a fixed point motion.
摘要
刚体定点运动时本体
面与空间面间关系的一种证明方法。
A certification method to the relationship between polhode cone and herpolhode cone is given when the rigid body is in a fixed point motion.
摘要刚体定点运动时本体面与空间面间关系的一种证明方法。
The results indicate that the spores are yellowish, monolete, without perispore and bearing granular ornamentation on the exospore.They are bean-shaped in equatorial view and elliptical in polar view.
孢子黄色，具单裂缝，赤道面观豆形，面观椭圆形，不具周壁，孢子外壁局部具大小不一的颗粒状纹饰。
声明：以上例句、词性分类均由互联
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