主线

There is a consistent thread running through all these policies.

所有这些策中贯穿着一条始终如一的主。

Laozi's thoughts involve cosmism, ontology, philosophy and political science."Tao", as the core of Laozi's thoughts, has cosmogenetic and ontological meanings.

老子思想涉及宇宙论、本体论、人生论，“”是贯穿其中的主。

When the Lanes joint a Plane curve,such as a clothoid or an arc with small radius,itll need repeatedly compute and adjust.

尤其是变速车起点对应的主形为圆或缓时,往往反复试算调整,也难以得到比较理想的设计方案。