1. 弱脉：acrostic 离合诗 | acrotism 弱脉 | Acrux 星
2. 无脉：acrosome 顶体 | acrotism 无脉 | actinic 光化的
1. Basing on analysis movement rule of celestial body, the author discuss the cause of earth's special structure formation and the evolvement law, who cites the theorys of gravitation, electromagnetic force, mightiness and acrotism.
本文在分析天体运动规律的基础上，运用引力、电磁力、强力和弱力等四种基本相互作用力的原理，探讨了地球特殊构造的成因和演化规律。